Diddy turned 49 yesterday, but he's still partying like a kid whose parents are out of town.

In fact, things got so rowdy during a late night birthday celebration at Puff's L.A. home that the cops came and shut it down.

The party had started at Ysabel in West Hollywood last night and included LeBron James, Usher, Wiz Khalifa, Kodak Black, and many more bold-faced names. 

The crowd moved to Diddy's abode a little after midnight, with an estimated 50 cars parked outside and 200 people inside. At 2 AM, the noise complaints started coming in and the police told Puff's security that they would either have to shut down the party, or the cops would enter the home and disperse the crowd.

Security agreed to end the party and that was that.

No word on whether 50 Cent was making late-night calls to LA.