According to TMZ, who obtained the video of the altercation, Justin and Orlando were in popular Cipriani Restaurant which was parked with other celebs including Diddy and Paris Hilton, when the confrontation happened.
"You don't see Orlando swing (in the video), but the eyewitnesses tell us that's exactly what happened. We're told Justin ducked the punch. That's where the video starts and you hear Justin scream, "What's up bitch?". We're told when Bieber left the crowd applauded." TMZ reports.Now why would Orlando Bloom attack Justin? It has to do with his ex-wife Miranda Kerr.
Back in 2012, when supermodel Miranda was still married to Orlando, Justin Bieber and Miranda, 31, met at a Victoria Secrets fashion show and there were reports back then that Justin and Miranda had a thing, a report nobody, including Miranda, ever denied.
About a year later Miranda and Orlando ended their marriage. In April 2014, Orlando was spotted hanging out with Justin's on-and-off girlfriend Selena Gomez.
After the fight this morning, Justin mocked Orlando by posting a pic of Miranda on his instagram page with a love icon and then quickly deleted it.