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DJ Khaled's entry into the All In Challenge features 2 things near and dear to his heart -- jet skis and letting loose in Miami.

The superstar DJ and producer has accepted Michael Rubin's challenge to join his brainchild -- the celeb-driven fundraiser to help feed people in need during the coronavirus pandemic -- by offering up a personal package he says will be "off the chain."

Khaled fans can enter now for a chance to ride jet skis with him, and after all the excitement ... grab dinner at his favorite spot in Miami. The package includes airfare and a 2-night hotel stay for the lucky winner.

As you may know, a growing number of star actors, athletes, musicians and TV and Internet personalities -- from Leonardo DiCaprio and Kim Kardashian to Drake and Tom Brady -- are "all in" ... and seem to be upping the ante with their commitments to the cause.

DJ Khaled says it's not a competition though -- it's more about offering a personal experience -- which for him, is all about getting wild on the water ... safely, of course.

Khaled also gives mad props to Rubin for orchestrating the hugely successful fundraiser and going out of his way to help others. So far, the All In Challenge has raised over $23 MILLION for relief efforts.

BTW -- jet-skiing hopefuls can enter the Khaled sweepstakes for just 10 bucks for 10 entries. Good luck!

Donnie Wahlberg says he had to pull the ol' Jedi mind trick to get his bro, Mark Walhberg in a new NKOTB music video, but turns he's in really good company!!!

Donnie joined us Monday on "TMZ Live" to download us on New Kids On The Block's new single, "House Party." He says it was easy to nab Boyz II Men, Big Freedia, Naughty By Nature and Jordin Sparks for cameos -- they all go way back -- but Mark was a different story.

Donnie says Mark's not trying to rekindle any thoughts of his Marky Mark persona -- so, he admitted playing a little sneaky trick to get him on cam. Well played, DW!!!

Hey, all proceeds from the song are going to COVID-19 relief via No Kid Hungry, which provides food to children who rely on schools for meals. So, it's all good Marky Mark.

Ya gotta see the video ... Carrie Underwood also makes a cameo, as does Donnie's wife, Jenny McCarthy.

Post Malone certainly entertained us with his Nirvana tribute performance ... but the live streamed show also raised serious funds for coronavirus relief.

If ya missed it on Friday ... Posty sang and played guitar à la Kurt Cobain during a 15-song, 80-minute set that included classics like "About a Girl," "Heart-Shaped Box" and "Come As You Are."

He was joined by 3 socially-distanced musicians in other rooms of his Salt Lake City home -- blink-182 drummer Travis Barker, bassist Brian Lee and guitarist Nick Mack.

We're told the makeshift tribute band raised $1 million in the first hour of the virtual concert alone, but that number's since climbed to a whopping total of nearly $4.3 million and counting.

Fans can still donate on the YouTube page of the performance, and all proceeds go to the United Nations Foundation's Covid-19 Solidarity Response Fund for The World Health Organization.

BTW -- Post's performance got rave reviews from some very important people, as well. Nirvana bassist Krist Novoselić said, "I don't think these fellows can play any better. They are on fire!!!!" while adding that he was "holding emotions back the whole show."

Courtney Love also gave her stamp of approval with an emphatic "GOOSEBUMPS! F*** YES." on Instagram. She told Malone to celebrate afterward with a margarita.

Lil Durk brought some warm meals and happiness to healthcare workers on Chicago's frontlines against COVID.

The rapper and his team pulled up to Chicago's Rush Hospital Friday with boxes of meals from PHLAVZ Restaurant -- owned by Durk's manager -- to distribute. We're told a member of the hospital's hospitality staff then brought the meals inside to distribute.

Not only did they drop meals off at the hospital, PHLAVZ also made 100 meals available to healthcare professionals for pickup later Friday night.

Durk -- who grew up in Chicago -- but now lives in Atlanta, tells us, "Everyone back home has been in my thoughts, especially those doing something for the community and all the neighborhood heroes. I thought about all the first responders putting their lives on the line to help out and it inspired me, so I took a jet back to Chicago to show my thanks."

Insane Clown Posse's giving Michiganders short on masks a reason to bust open some Faygo and celebrate ... a helpful donation from the Juggalo world.

Detroit's very own horrorcore hip-hop duo delivered more than 300 band shirts Wednesday to be made into masks, which will be distributed to community members and healthcare workers in need.

A member of ICP's record label -- decked out in clown gear, of course -- dropped off the boxes of merchandise at the Detroit Sewn donation center. Every Juggalo would probably love to get their hands on some of these shirts, but let's face it ... they probably already have enough gear.

Glamorous Moms Foundation has partnered with Michigan's Detroit Sewn to take in fabric donations from all around and turn them into masks that are free to the public during the COVID-19 pandemic.

Shaggy 2 Dope and Violent J tell us they linked up with the good cause to simply do their part to help out locally, like so many others are.

We're told it will take a few days for the ICP shirts to be sewn into masks, which will feature the names and faces of the duo ... but mostly 2 Dope, if you believe what J's saying.

ICP also just recently dropped their new app, Custom Clown Clips, as a way to send personalized messages and stay connected with all the Juggalos during the pandemic.

Either way, there's nothing clownish about their good deed.

Post Malone is paying tribute to Kurt Cobain's iconic band with a special concert from home, featuring Nirvana songs ... and it's all for coronavirus relief charities.

The singer put up a somewhat cryptic video Wednesday, showing himself sitting on a stool onstage, with an acoustic guitar in hand ... while an unseen crowd cheers in the background. It's very reminiscent of Kurt's famous ''MTV: Unplugged'' show from back in the '90s.

After the footage plays, a title card reading "Post Malone Nirvana Tribute Livestream" flashes on the screen teasing a Friday YouTube special.

Our sources say Post wanted to honor the Nirvana frontman this month, which marks the 26th anniversary of his death. In the same breath, he also wants to help out in the COVID-19 fight.

Post will have a donate button on his YouTube page on the day of the at-home special -- which we're told will be shot at his living room bar -- and the cash will go toward the United Nations Foundation’s COVID-19 Solidarity Response Fund for the World Health Organization -- a newly-created org that uses funds to help train and equip communities to detect and fend off the virus on the ground. YouTube's matching all of PM's donations.

It sounds like the music will be strictly Nirvana, although it's possible he might sprinkle a few other songs in there too.

FYI ... he's got a tattoo on his face that reads "Stay Away," after the Nirvana song of the same name. So yeah, better than average chance you'll hear that one come Friday.

Life ain't all that beautiful in 2020 ... another music festival is getting scrapped due to concerns over the novel coronavirus.

Life is Beautiful, a three-day outdoor festival in downtown Las Vegas celebrating music, art, food and comedy, has just been canceled due to COVID-19.

The festival was scheduled to take place on multiple stages in Sin City Sept. 18-20, but event organizers say they're taking a one-year hiatus and intend to return in 2021.

Life is Beautiful is still gonna try and make an impact on Vegas even though no bands are coming and no murals will be painted ... festival organizers say they're putting resources towards the local community instead of the event.

Seems festival honchos saw the writing on the wall ... Life is Beautiful says there was just no way the festival could happen as planned due to the health and economic impacts being brought on by the coronavirus pandemic.

Teddy Riley and Babyface put their reading glasses back on for another round of IG Live battling, but even on take 2 ... the event was technology-challenged.

The two R&B icons hopped back on the 'Gram Monday night to pick up where they left off over the weekend -- which went down in a fireball in what proved to be a huge fail. Welp, fortunately, running it back turned out to be a bit more successful (the guys were actually able to play some music and hear each other this time) but eventually ... it came to a halt.

So here's the gist ... Teddy and Face were on the same page at first, and did exactly what artists are supposed to do for these Live battles -- namely, play their biggest hits back and forth, and let the audience tuning in to decide who takes the round. That went on for a solid hour -- IG Live only lets you broadcast for that long -- before the feed finally went dead.

The guys came back on for another session, but for one reason or another ... Teddy's feed cut out completely not too long after they booted back up -- which caused confusion. Babyface -- at first, not entirely sure why Teddy had hopped out -- eventually stopped down and logged off himself to go and see if he could get on Teddy's IG Live sesh.

At this point, it turned into a game of Who's On First -- Teddy had, indeed, started his own IG Live sesh, but was back with a full musical set-up with live instruments. As he was waiting for Face to join the session, he started playing music to kill time, and was going IN doing it. Sadly, he didn't realize Babyface was at the door asking to be let in -- Teddy was that distracted -- and finally, his team got through to him. Everyone in the comments was trying to tell Teddy too, BTW.

This is where the "breaking the Internet" part happened ... Teddy was not able to let Baby back into the chat, try as he did. People chalked it up to him being an elder and unable to figure out the tech, but that's not the case ... it was Instagram's fault. Their network was jacked up because of how many people -- several hundreds of thousands -- watching.

It got so bad, IG finally had to say, "We love how much you're all enjoying the #TeddyRileyvBabyface Live on Instagram! We're experiencing some technical difficulties on mobile apps but we're working on it. In the meantime, live is available on desktop!"

The coronavirus put Lil Xan in the hospital this weekend, not because he contracted it, but because he's super stressed out over the stay-at-home orders.

The rapper tells TMZ he was rushed to the hospital by ambulance Sunday while at his mom's house in, of all places, Corona, CA. He's been quarantining there with her, and she's the one who called 9-1-1 after seeing Xan hallucinating so badly it was freaking her out.

Xan says doctors told him he'd suffered a panic attack, but he doesn't remember much of the episode. As for what might've triggered it ... he says he feels it was caused by anxiety he's been feeling while cooped up inside.

He says he's been in and out of hospitals over anxiety issues for years, but this is the first time it's happened since the coronavirus pandemic hit ... and it was the worst one. Xan's been avoiding the news to keep his head straight, but tells us social media doesn't help.

And yes, he's been quarantining pretty religiously too, only going out for essentials, like groceries.

One of the reasons the crisis has been weighing heavily on him might be about being the breadwinner in his family. Like millions of Americans, and almost all artists, he's out of work right now. His shows have all been canceled, including a festival in Canada.

Adding insult to injury, Xan says his album drop has been delayed and he can't even record now, either -- it's tough to get into a studio because they're not essential.

Willie Nelson's spending his 4/20 live streaming with some famous marijuana icons ... and he just got serenaded by Ziggy Marley!!!

The country music singer is live-streaming a weed-themed variety show -- dubbed "Come and Toke It" -- for 4 hours and 20 minutes ... and so far, it's been a blazing good time, with tons of special guests.

Ziggy hopped on and sang Willie a personalized version of Bob Marley's hit, "One Love," bringing together two famous music families bonded by weed.

Matthew McConaughey dropped in to chop it up with Willie, Beto O'Rourke stopped by for an update on quarantine life, Tommy Chong exchanged jokes and Bill Maher lamented the fact he couldn't smoke a joint with Willie in person because of social distancing.

Willie and co. whipped this thing together to celebrate the unofficial stoner's holiday -- WN is a big smoker himself, in case you hadn't heard -- and the whole idea is bringing people together during quarantine to smoke some ganja, and donate to a good cause in the process.

The funny thing is ... no one is blazing up, at least not on camera.

Any money raised during the live stream will go toward The Last Prisoner Project -- an org dedicated helping inmates who've been convicted of weed-related offenses get released. The crew is also promoting the hashtag #PassLeft during the show ... self-explanatory.

One of the cool highlights of the broadcast will be the moment that some lucky random viewer is chosen to hop on an individual chat with Willie himself, and to wish him a happy birthday. He turns 87 in a little more than a week, so a rando stoner can give him a personal shout-out.

Perhaps the biggest takeaway from this, though, is the opportunity to smoke with Willie himself.

YG is taking a hands-on approach to giving back ... dropping off care packages filled with what have become crucial items these days.

The rapper's nonprofit org 4Hunnid Ways is sending $10k worth of PPE (personal protective equipment) to dozens of families in Emergency Crisis Housing in Central Los Angeles. The packages have masks, gloves, sanitizer detergent, clothes, board games water, diapers, bottles and other toys.

In total, YG and co. are helping more than 100 families.

YG and his biz partner Sheron Barber tells TMZ, "Nothing prepares you for a situation like this, rather than sit by and wait for updates on how people in underserved circumstances are going to be assisted, we took the initiative to listen to the needs of families and provide all the necessary items to help them through Quarantine while still practicing social distance."

He's just the latest example of people -- famous or not -- stepping up to help out those less fortunate right now.