Nipsey Hussle's family has a new argument for why they should retain custody of his daughter -- they claim there's ample proof her mother is unfit, based on her 2 other children.

Sources close to the late rapper tell TMZ ... his family's lawyers think they can win the custody battle for his 10-year-old girl, Emani Asghedom, by highlighting Tanisha Foster's track record with her 18-year-old daughter.

We're told the girl is currently in juvenile detention in L.A., and has been in and out of the system since she was 12. Our sources say she's in juvi now for petty theft, and nobody will come forward to claim her ... including Tanisha.

Even though her daughter is 18, we're told the detention center won't release her because she doesn't have a GED or a stable environment to which she can return. Our sources say Tanisha's been MIA most of her daughter's life and has refused to attend her court hearings.

We're told Foster also has a 17-year-old son who bounces around from home to home and doesn't attend school regularly.

Nipsey's family claims the proof is in the pudding and feels Foster is not a fit parent -- and definitely isn't qualified to care for Emani.

We broke the story ... the family also believes Foster is unstable due to her long rap sheet and current legal issues.

Emani is currently living with Nipsey's sister, Samantha, who kept custody of her after a court hearing last month ... much to the chagrin of Tanisha.

We reached out to Tanisha and she had no comment. The next custody hearing is set for July.

Cesar Millan's spreading his wings ... using his talents to tame a moody birdie at the Playboy Mansion.

We're told the new owners of the famous mansion -- brothers Evan and Daren Metropoulos -- will hand over their African grey crowned crane sometime at the end of this month. The plan ... the famous dog trainer will calm the temperamental bird at his Santa Clarita ranch.

Cesar came into the picture near the end of last year during a visit to the mansion ... where the Metropoulos bros groused to Cesar about the bird's aggressive tendencies ... like charging people and just making it difficult for caretakers to tend to the exotic bird. 

Cesar connected with the African crane during his visit and made it submit ... showing who's boss, and it astounded everyone. The brothers were duly impressed and hatched a plan with Cesar to reboot the bird.

The crane's gonna get the full Cesar treatment, and when he's done, it'll head back to the Mansion ... hopefully way less cranky.

Before this young singing talent became a huge country music star, she was wowing crowds in her native Arlington, Texas before taking her talents to Nashville. She continued wowing crowds there ... playing Honky Tonks even before she was of legal drinking age.

You might also remember her from "American Idol" and other singing competition shows but never made it past the first round. But, that didn't deter her music career whatsoever ... bursting to stardom with a single about her church. She's also earned a Grammy for best solo performance and her husband's a super tall country star.

Can you guess who she is?

Caitlyn Jenner would like all the dads in her life -- and, by extension, the Kardashians' lives -- to know she appreciates each and every one of them ... except one Tristan Thompson.

Kylie and Kendall's father posted a Father's Day tribute Sunday, honoring not only her own dad -- who was a WWII vet -- but also her two sons Burt and Brandon (who are both dads) ... as well as Kanye West, Rob Kardashian, Scott Disick and Travis Scott. 

View this post on Instagram

To all the dads in my life- happy Father’s Day! Starting with my father, a World War Two veteran. Dad, Burt, Brandon, Kanye, Rob, Scott, and Travis - Happy Father’s Day!

A post shared by Caitlyn Jenner (@caitlynjenner) on Jun 16, 2019 at 8:51am PDT

You'll notice that Tristan is absent from the group shout-out. He, of course, shares a kid with Khloe Kardashian ... but got kicked to the curb after cheating on her (again).

Clearly, Caitlyn's not a fan of the guy ... none of the Kardashians seem to be at this point, frankly. Also interesting -- Khloe posted some cryptic messages ahead of the big holiday that one could interpret as being aimed at her baby daddy.

On her Insta story, Khloe posted stuff like ... "stop having relationship problems with someone you're not in a relationship with" as well as, "reminder: you cannot change a person who doesn't see an issue in their actions." 

The good news ... Khloe seems to have a decent co-parenting relationship with Tristan for the sake of their daughter, True. She told Laura Wasser recently that she keeps it cool with him and tries to keep any bad energy away from the kid. 

Heck, she's even reunited with him since their split just to maintain the father-daughter relationship. When it comes to Father's Day though ... no love, apparently. 

It's Father's Day -- and as the rest of us give a big hug to our papa bears ... these famous folks are pretty much doing the exact same thing.

Lots of stars took to social media Sunday to celebrate the holiday -- whether that meant honoring their own dads with a selfie, or snuggling up with their kids. Take, for example, Tom Brady -- who's got three children of his own -- cozying up with the tykes in his bed.

You also got Chance the Rapper, who shared an adorable photo of his daughter coming up to him for what seems like a goodbye kiss while he sat in the driver seat of his car.

Tons of other celebs honored Father's Day as well -- Rob Lowe got a photo with his pops, as did Bret Michaels, Ryan Seacrest, David Beckham and Paul Stanley.

Other A-listers posed with their kids, such as Magic Johnson, Omar Gooding, James Van Der Beek, Slim Thug and more. 

Click through to see the rest of these proud papas ... trust us, it'll make ya forget all about your own daddy issues. 

Tory Lanez claims that a couple directors working on a music video he was a part of tried swapping a darker-skinned woman for a lighter one on set ... but he wasn't having it.

The Canadian rapper posted a behind-the-scenes clip of him being filmed for Nafe Smallz's "Good Love" video, which officially dropped Thursday. In Tory's BTS video, you can see a black woman dancing next to him ... but at some point, it appears someone behind the camera motions for her to leave -- only to be replaced with a lighter-skinned black woman.

Tory calls for a timeout and brings back the darker-skinned woman. It sounds like he says, "We don't even need that," going on to tell the lighter-skinned lady that she's beautiful. Filming picks up from there, with the original woman back in place. 

Tory says what he experienced is an ongoing issue in the entertainment industry, and that it needs to stop. He says sure, he might joke about the black community like everyone else does, but "WHAT IM NOT GOING TO DO IS ALLOW ANY OF THESE DIRECTORS TO DE-VALUE OUR BLACK WOMEN." He adds, "countless times I've seen directors swap out our women of color for women of lighter complexion, or women with straighter hair ETC." 

Tory finished by writing, "IT IS OUR RESPONSIBILITY AS ARTIST TO STAND UP AND NOT LET THIS HAPPEN ... it's BEEN time to embrace our woman of color."

Interestingly enough, it looks like the shot of the woman dancing next to Tory in the white room didn't even make the final cut of the video ... but she makes multiple appearances throughout regardless.

We've reached out to the director duo of "Good Love" -- Capone x Guise -- to see if what Tory's relaying here is actually what was happening in the moment. No word back yet.

Drake seems to be giving folks a rare sneak peek into his life as a dad ... sharing what sure looks like a Father's Day gift from his baby boy.

Drizzy posted a photo Sunday of some artwork with spattered paint over stenciled-in "PAPA" lettering. He captioned his photo, "Happy Father's Day." The gift is almost certainly from his 1-year-old son, Adonis, whom he shares with French model Sophie Brussaux.

This wouldn't be the first time that Drake's shared some of Adonis' art on social media. During the holidays, he posted a photo of a handprint painting his son created. At the time, he said Adonis was greater than Picasso ...and seemed like a proud pops for it.

View this post on Instagram

Adonis > Picasso don’t @ me 💙🎄

A post shared by champagnepapi (@champagnepapi) on Dec 25, 2018 at 11:16pm PST

As we've reported ... Drake's been bragging about his boy to friends and family since Sophie gave birth. He's had a solid co-parenting relationship with her too, sometimes sending private jets so she and Adonis can fly out to see him ... whenever possible. 

Drake doesn't live with Sophie or Adnois -- we're told his work schedule doesn't allow for it. He does Facetime the kid daily though ... so they've definitely got a relationship. 

Our Drake sources have also told us that Sophie's been exposing Adonis to multiple languages and the arts as well -- the proof is clearly in the paint on the latter. 

Wendy Williams' new guy is sick and tired of people thinking he's hanging with her in hopes of landing a sugar mama ... because he insists he's not about that life.

Sources close to Marc Tomblin tell TMZ ... he doesn't care at all about fame and he's not the type of guy who'd let a woman take care of him financially. We're told the only reason he's kicking it with Wendy is because they enjoy each other's company.

We're told Tomblin hasn't asked Williams for a dime since they've been together and won't in the future -- don't let those pics of them hitting an ATM fool you. He's also telling friends that NYC shopping spree they went on was not funded solely by Wendy ... he purchased his own things.

Our sources say Marc's been getting a lot of flak from people who are suspicious of his motives, so he's been blocking them ... along with anyone who reaches out to him to talk crap about Wendy.

As we've reported ... Wendy's ignoring all the haters and naysayers and living her life how she wants. As she put it to us, "I am a 54-year-old grown ass woman. I know what I'm doing."

She's also been careful about not calling Tomblin her boyfriend, but making it clear she's having a lot of fun with him ... enough to keep him around in NYC with her much longer than expected.

Wendy's show is on a break for the next 3 weeks, so the 2 still have a lot of time to live their best single lives possible ... together.

Lauren London is remembering Nipsey Hussle on a holiday marked for dads ... and she's doing it with a touching tribute honoring his fatherhood.

On Sunday, Lauren posted a sweet photo of her, Nipsey and their son, whom Lauren is cradling. She captioned her pic, "One of the reasons I fell in Love with You.... Your Fatherhood." Lauren added, "Today we celebrate You Love you Ermias."

View this post on Instagram

One of the reasons I fell in Love with You.... Your Fatherhood Today we celebrate You Love you Ermias 💙

A post shared by Lauren London (@laurenlondon) on Jun 16, 2019 at 8:33am PDT

Nipsey and Lauren had one child together -- 2-year-old Kross. He also had another child -- his 10-year-old daughter, Emani -- from a previous relationship. 

Clearly, Lauren is still mourning the loss of her partner -- who died in March after being shot. She added another message on her Instagram story that hit the point home ... "Sent a lot of prayers to Heaven last night," with prayer hand emojis attached. 

As we've reported ... Nipsey's daughter is currently in the custody of his sister, Samantha, after she filed for guardianship over her -- Sam feels Nipsey's first baby mama is unfit to care for the child. They're in the middle of a custody battle right now over the issue.

Kross, meanwhile, is staying with his mom. No problems there.

Blue Ivy is on her way to stardom, at least that's the way it seems based on her performance at a big dance recital.

Beyonce and Jay-Z's 7-year-old took center stage at the Debbie Allen Dance Academy in L.A. and slayed it in black tennis shoes and sparkly jean shorts. It was the annual Spring Concert, this year titled "Colors."

She danced to her mom's song, "Before I Let Go," a redo of the hit from Frankie Beverly and Maze.

Blue Ivy actually performed 3 times during the show.

Check out the video ... she does a perfect split at the end.

Cuba Gooding Jr. has his share of problems these days, but he's not lacking for fans, albeit the ones who are related to his defense.

Cuba hit up Le Bilboquet in Long Island, NY, and mugged with Rachel Heller, the daughter of Mark Heller, the lawyer who is defending him in his groping case.

It's the first time we've seen Cuba since he was charged with sexual abuse and forcible touching.

TMZ obtained surveillance video show Cuba at the Magic Hour Rooftop Bar & Lounge where he allegedly grabbed a woman's breast. You can see Cuba reach toward her breasts but Cuba and Mark Heller insist Cuba did not do anything criminal.  

There are 2 parts to the video. In the second part, you see the woman complain to security as Cuba is on a sofa nearby with his girlfriend. As she talks to an employee of the restaurant you see Cuba cross her path, look at her but he doesn't seem to say anything.

Cuba surrendered to cops last week and was booked on the 2 charges.