Jason Derulo Attacks Men After Being Called Usher

Jason Derulo unleashed a beatdown on two men who allegedly mistook him for Usher.

Video footage, obtained by TMZ, shows Derulo attacking the men at a Las Vegas hotel after they trolled him. Derulo and one of the men were passing each other on the escalator when the guy yelled at Derulo, “Hey, Usher! F**k you, bitch!”

Derulo reacted to the Usher line by charging towards the man and punching him in the face, sending him to the floor. He also allegedly slapped the second man moments later before security scrambled to break up the fight.