Party All The Time

File this Under: "Only In Hollywood" -- the caged lion at Meek Mill's humongous Grammy after-party moonlights as an actor ... and once starred in a movie with Matt Damon, TMZ has learned.

Sources connected to the lion tell us ... the lion's name is Felix -- and rapper Meek Mill shelled out $9,000 for the king of the jungle to appear at his Hollywood Hills mansion party for 3 hours.

As we previously reported, Mill's party was PACKED with huge stars like Diddy, Drake, Nicki Minaj and more ... but Felix happens to be a heavyweight in his own right.

We know ... Felix had a starring role in the 2011 flick, "We Bought a Zoo" ... which featured Matt Damon and Scarlett Johansson.

Felix has also starred in several commercials (he's not as proud about those -- but hey, he's gotta pay the bills).

Jay Z pulled out all the stops Tuesday night during J. Cole's b-day concert in NYC -- surprising the 29-year-old rapper with an incredible guest performance ... before handing over a priceless piece of rap history.

The crowd went WILD at the Garden -- Hov came on stage and performed "PSA" while J.Cole stood in shock ... it was awesome.

But the best moment by far was when the music stopped ... Jay Z pointed at the diamond chain around J. Cole's neck -- Jay Z's original Roc-A-Fella chain from when he founded the label in the 90s.

J. Cole thought he was wearing the chain on loan for the night ... but Jay Z turned to him and said, "That, on your neck, is my original Roc chain -- and it's yours."

Legendary.

A bunch of Denver Broncos players decided to blow off some pre-Super Bowl steam Monday night with a huge sushi dinner in NYC -- with champagne and models ... but no Peyton Manning, TMZ Sports has learned.

We know ... linebacker Brandon Marshall, defensive tackle Mitch Unrein, linebacker Wesley Woodyard and roughly 15 of their teammates hit up Tokya sushi lounge around 8pm.

We spoke to Tokya owner Roee Nahmani who tells us ... the guys were hesitant to scarf down the sushi at first, out of fear of a possible bubble gut situation ... but quickly got over it and proceeded to eat more than 100 ROLLS.

We're told the guys did booze a little bit -- drinking some Don Julio 1942 tequila, Moet Rose champagne, Ciroq vodka and Hennessey ... and toasted to the Super Bowl with every round.

Don't worry, Nahmani says things never got out of control and the guys couldn't have been nicer.

Cops swarmed the Grammy afterparty thrown by Meek Mill in the Hollywood Hills -- a party so wild it had more than a thousand celebs and actual WILD ANIMALS!!

Meek rented out a mansion on Mulholland Drive and hosted Diddy, Lil Wayne, Drake, Nicki Minaj, Birdman, Nelly, Jermaine Dupri, Bow Wow and many more -- but the bash was still going at 5 AM ... and that's when the California Highway Patrol stepped in to shut it down.

TMZ sources inside the party tell us most of the guests were shuttled up to the mansion -- but others parked illegally along Mulholland -- and cops were towing cars as the sun came up.

Hundreds of guests were stranded, wandering the street trying to get home.

Still ... it was totally worth the hassle because we're told bottles of Ace of Spades were flowing by the thousands -- and he had a camel and a LION posing for pics with guests!

Ain't no party like a Meek Mill party ...

CeeLo knows ... nothing gets a party started like half-naked women jumping up and down -- which is why the guy booked 3 hot chicks to work a trampoline at his Grammy shindig last night.

TMZ has footage from inside CeeLo's bash at Lot 613 in L.A. ... and it looked AWESOME -- with food trucks and a mobile barber shop ... and oh yeah, HOT CHICKS ON TRAMPOLINES!

CeeLo couldn't have been cooler -- and kicked it with our camera guy while he was gettin' shaved up for the party.

Gotta stay fresh.

Justin Bieber's been well-stocked on weed for a year -- and there's picture proof.

TMZ has obtained multiple photos of Justin's kitchen taken at the beginning of 2013 ... when Bieber was 18.

The photos show an elaborate weed set-up -- including a bong, a substantial amount of weed, and other paraphernalia.

TMZ published photos of Bieber holding a blunt in January 2013 ... the first pics ever of the singer toking what appeared to be weed.

The kitchen seems to be drug central ... Bieber's pal Khalil recently posted the pic of himself in the singer's kitchen, holding a styrofoam cup -- a marker of lean ... the drug we know Bieber's been seriously abusing for at least a year.

What do you get when you mix the most popular DJs in Australia, tons of booze, bad ass parties, a music video and a kangaroo -- one big, fat lawsuit.

Cash Money Records artists The Stafford Brothers were smacked with the lawsuit this week ... after owners of a dope pad they rented in Studio City sued them for allegedly leaving it in shambles.

The owners claim the group threw lots of parties -- including one for their music video "Hello" featuring Lil Wayne -- violating the lease and wrecking the joint by:

-- "Illegal" service of alcohol

-- Pouring liquid nitrogen in the house

-- Installing a skate ramp

-- Allowing a LIVE KANGAROO to roam the house

The owners want the group to ante up more than $100k -- plus another $25K in punitive damages to teach them a lesson.

Side note: the kangaroo party looks AWESOME!!

The 90's were on and popping again Friday night in L.A. during Dr. Dre's pre-Grammy Party ... but nothing was cooler than Puff Daddy reuniting on stage with his former protege Ma$e.

Diddy and Ma$e killed a stellar set of a songs including "Been Around the World" and "All About the Benjamins" at the Belasco Theatre ... but their rendition of "'Mo Money, 'Mo Problems" was off the charts.

Eminem hit the stage later in the evening with Dr. Dre ... who also reunited with Blackstreet to perform "No Diggity."

It was all that and a bag of chips.

Kansas City Chiefs RB Jamaal Charles went HAM on a turntable at a Hawaiian nightclub ... DJ'ing on stage in front of a crowd PACKED with NFL superstars ... and TMZ Sports has the footage.

The rager went down Thursday night at M Nightclub in Honolulu ... and we're told Jamaal sent the place into a frenzy when he hopped on stage and spun "Ocho Cinco" by French Montana with DJ Jami.

The party was hosted by former Houston Oilers QB Warren Moon ... and sources tell us, Pro Bowlers like Terrell Suggs, Tony Gonzalez, and DeSean Jackson each had their own tables complete with three bottles of Ciroc.

Snoop Dogg picked the perfect time to hot box his hotel room down in Australia -- 'cause a bunch of firemen just happened to be nearby when his smoke alarm started blaring.

Best of all ... no one seems to know what caused all the smoke! Probably just forgot.

Charlie Sheen doesn't know the definition of "low key" -- TMZ has learned, cops were called to his house last night ... over a party that was SUPPOSED to be a small, intimate gathering of friends.

Sources tell us, Charlie and 3 or 4 close friends were kicking it after he had spent all day shooting for "Anger Management." It was a long day and Charlie needed to unwind ... drinks, music, yadda yadda ... so he invited some pals over to relax.

But in typical Warlord fashion, we're told the intimate gathering quickly spiraled into an all-out rager ... and the neighbors finally called police to complain about the noise.

We're told cops responded to the scene ... and informed Sheen's security about the noise complaints. Charlie agreed to keep it down and, voila, the police left without further incident.

Snoop Dogg took the meaning of hotbox to a whole new level Thursday night ... when he smoked out his Australian hotel room so intensely, firefighters RACED to the scene thinking there was a real fire!

Here's what went down ... cops say "smoke from an unidentified source" triggered a fire alarm around 10am ... and firefighters who happened to be in the hotel rushed up to the scene to investigate the situation.

But when they got to the room, the firefighters quickly realized there was no fire ... just a ton of smoke (duh, it's Snoop) ... though officials won't say if weed was involved.

Once the situation calmed down, Snoop actually took some Instagram pics with the responders ... and talked about how he always wanted to be a firefighter.

He does enjoy getting blazed.

Bieber was taken into custody and transported to the police department where his blood alcohol level was tested. Our law enforcement sources say Justin was given a field sobriety test at the scene ... and failed.

His was then taken to jail where he was booked and processed.

We're told Bieber had just left SET nightclub and was driving a yellow Lamborghini at the time cops spotted him in a residential neighborhood. Our sources say Justin's people actually blocked the street off so Bieber could drag race.

Sources say the person Justin was racing was also arrested. We're told that driver was Khalil, a well-known rapper on Def Jam Records. He was in a red Ferrari.

Justin had a passenger in the car -- Chantel Jeffries -- a model, who's dated multiple celebs including an NFL superstar.

The traffic stop was for drag racing and cops determined he was driving under the influence.

The photo (below) is Chantel -- the model who was in Justin's yellow Lambo -- and Justin. The pic was NOT taken at the time of the arrest.

Justin Bieber's father helped facilitate the insanely stupid moves of his son that landed him in jail ... TMZ has learned.

Sources familiar with the situation tell us ... 38-year-old Jeremy Bieber was not only present when Justin was arrested early Thursday morning ... he was one of the people who helped block off the residential street so his son could drag race.

It's even worse ... Jeremy was in SET nightclub just before the arrest with Justin and was around him all day, when the self-confessed little pothead was smoking weed.

As we reported ... Justin admitted that he was under the influence of Rx drugs, alcohol and weed at the time of his arrest ... and Justin's dad was right there in the mix.

Unbelievable.

Empire Today needs to get in the stripper game -- because Justin Bieber literally laid out a plush CARPET of money inside King of Diamonds this week ... and TMZ has pics of the action.

As we reported, Bieber threw down roughly $75,000 inside the Miami strip joint ... and we really mean threw down ... just look at the rainstorm aftermath.

Sources at the club tell us, Bieber had the entire top level reserved for himself and his crew. The singer also handpicked 4 of his favorite strippers to keep him company with endless lap dances.

Not a bad life. For Justin.

John Legend got to perform at Michelle Obama's birthday bash -- while his wife Chrissy Teigen got to take home a grotesque bruise she blamed on dancing. Thing is ... no one's buying that story, and the White House ain't talkin!

We smell coverup.