Killer Mike is suing over last year’s arrest at the Grammys … and he’s laying the blame on the private security services hired to work the event.

In a new lawsuit, obtained by TMZ, the rapper says he was stopped by security on his way to the red carpet for photos and media interviews despite winning a bunch of awards and having all the necessary credentials to access the secured area.

Killer Mike says the two companies the Grammys hired to do security at the 2024 show — S&S Labor Force Inc. and JRM Private Security — gave their employees way too much power … which led to him being unlawfully placed under citizen’s arrest.

In the docs, Mike says he was unlawfully detained when security put him under citizen’s arrest under false pretenses … and he says it led to cops eventually arresting him and holding him in a nearby jail for hours, causing him to miss out on presenting a Grammy award for a huge TV audience.

As we reported, Killer Mike was ultimately released from police custody after the award show … and a couple months later, prosecutors declined to pursue criminal charges against him.

Mike says the whole saga caused him unnecessary public embarrassment, distress and professional harm … and he’s going after the security companies for damages.

Diddy‘s latest accuser says his career opportunity of a lifetime turned into a horrific night … where he was drugged and sexually assaulted by Diddy … TMZ has learned.

An anonymous man says he was an up and coming rapper/singer in 2015, when he landed a nightclub gig in L.A., and Diddy showed up with his entourage and a ton of Ciroc bottles for the crowd … according to a lawsuit filed Monday by attorney Tony Buzbee.

The John Doe accuser says one of Diddy’s associates told him if he did well, Diddy would talk to him about possibly signing with Bad Boy Records. After his performance, he claims he was invited to a VIP section with Diddy and other “well-known” artists, many of whom were taking drugs.

Corey Holcomb swears he got sucker punched by a female comedian who’s hell-bent on taking him down, physically and financially … so he’s seeking court-ordered protection.

Corey says the comic-on-comic beef started back in December outside the Hollywood Improv … when Cristina Payne put hands on him as his back was turned to her. In the docs, filed Monday in L.A. Superior Court, Corey also claims she hurled a bunch of insults and obscenities worthy of a celebrity roast.

Among the comments Cristina allegedly made — “Your mother is a bitch,” and “Your d*** ain’t s***. That’s why your wrist got broke.” For the record, Corey says his wrist injury was from skateboarding … not masturbation.

Now, in his request for a restraining order against Cristina, Corey also claims she provided TMZ with a video that only shows part of their altercation … excluding her aggression. While it’s true TMZ broke the story about Cristina’s allegation Corey struck her that night, we were never given, nor did we post, a video of their fight.