Justin Bieber punched a man in the face who had grabbed a woman by the throat it is claimed.
The 24-year-old pop star sprung into action as the unidentified man would not release his grip on a woman according to a Sunday morning report from TMZ.
Sources close to the situation told TMZ that Bieber had arrived at a party thrown by pal Patrick Schwarzenegger after Coachella night two when the incident occurred late Saturday night.