2/17/2017 1:00 AM PST
Justin Bieber went from funny to fuming in a hot second Saturday morning … so says the guy who claims he got clocked.
TMZ broke the story … Justin’s a suspect in an alleged battery that went down at a pre-Grammy party at Serafina restaurant in L.A., after Dean Parker fired up his camera and recorded Justin fake fighting with Kyle Massey.
The video shows a playful Justin who turns angry after someone screams for people to stop shooting video. Parker says Justin lunged for his camera, striking him in the face … although you don’t see the strike on the video. Cops told us it was reported as a headbutt.
It’s interesting … we got this pic of Justin’s freshly cut hand as he left the restaurant.
Parker does not want Justin prosecuted, although he would like to go a few rounds with him as an undercard in the Soulja Boy/Chris Brown boxing match. Don’t do it, Biebs … Parker’s 6’5″.