Jason Derulo Sued For Slashing Limo with Broken Glass ... His Side Says Impossible

Lonnie Reynolds of American Limo Services tells TMZ ... one of his Sprinter vans picked up Jason and a
group of friends in March to take him to his O.C. club gig. Everything was cool until they got back to Jason's L.A. crib at the end of the night.
Lonnie claims Jason demanded the driver pull right up to his front door, but the driver refused ... fearing he'd take out some trees. He claims Jason and crew got pissed, and according to the lawsuit -- obtained by TMZ -- they used broken champagne flutes to stab seats, scratch windows ... and punched the stereo system.
However, sources connected to Jason deny he had anything to do with the mayhem. In fact, they tell us he wasn't even in the van that night.
Lonnie's company is only suing Derulo -- none of his friends -- for the total damage ... $9,490.
history of drugs, steroids and lying.

By the way, Cormier is set to do some announcing work at UFC 211 this weekend (and the post-fight show on FS1) ... but it's obvious he wants to do less talking and more fighting.