TMZ

Jason Derulo Fights Two Guys Who Allegedly Mistake Him for Usher

Jason Derulo has a zero-tolerance policy for being mistaken for another R&B superstar -- so much so, he attacked 2 guys at a Las Vegas hotel for calling him ... Usher.

Raw and Uncut

TMZ Sports

TMZ TV

toofab

TMZ Supercuts

The Hollywood Beatdown with Tyron Woodley