MILEY CYRUS is being investigated for CRIMINAL BATTERY, after she allegedly hit a guy at an L.A. nightclub Saturday night.
--The alleged victim says that he and his friend accidentally bumped into Miley's fiancé LIAM HEMSWORTH, and the two posses got in each other's faces. Before fisticuffs could be exchanged, Miley jumped up and got in the middle.
--But the guy says Miley pushed him away and struck him in the face. He filed a police report, but this probably won't go anywhere.
--Police say the guy had no signs of injury, and a witness claims Miley didn't hit anybody.