Celeb Scoop: Diddy Will Guest Star in Season 8 of It’s Always Sunny in Philadelphia

Plus: Madonna talks Lady Gaga at concert in A.C., Slash ate at Alma de Cuba, Rihanna offers to babysit for Snooki, and more of today's celebrity news.

Diddy in It’s Always Sunny. Diddy will reportedly make an appearance in the upcoming eighth season of It’s Always Sunny in Philadelphia. The show is set to return to FX in October. [Hollywood Reporter]

Madonna Talks Lady Gaga. At her concert in Atlantic City, Madonna talked about Lady Gaga, telling fans that they’ll soon share a stage together and that imitation is the highest form of flattery. [Vulture]

Slash at Alma de Cuba. The legendary guitarist stopped in at Alma de Cuba for dinner on Thursday before heading to Atlantic City for his show at the House of Blues. [Philly Gossip]

Rihanna: Babysitter? The popstar recently offered to babysit Snooki’s little meatball Lorenzo after the Jersey Shore star tweeted that Rihanna’s “We Found Love” would never get old. [Us Weekly]

SNL‘s Chris Christie Jokes. Hey, did you guys know that Chris Christie is overweight? If not, here comes the SNL season premiere to remind you. Twice.

Girls, Girls, Girls. HBO brings back everyone’s favorite show about rich girl problems for a second season slated to start in January.