DJ Khaled Gets Massive Birthday Party Hosted by FOX's 'The Four' Pal Diddy

DJ Khaled had a birthday recently, and Diddy belatedly threw a celeb bash to celebrate ... courtesy of their new show together.

The party went down at a Beverly Hills estate and tons of stars showed, including Snoop, Chris Brown, Mary J. Blige, Jimmy Iovine, Usher, Jermaine Dupri, Pharrel Williams, Usher, Teyana Taylor, Fergie, Christina Aguilera, and Swae Lee from Rae Sremmurd.

Kelly Rowland serenaded Khaled to her version of Happy Birthday ... and Teyana Taylor nearly got in on a little dance-off action herself.

The party was presented by FOX's new singing competition show, "The Four," which both Khaled and Diddy are featured on. Ciroc also co-presented the shindig.

Khaled's BD was actually November 26 ... he turned 42. Looks like the party was definitely worth the wait.