Usher, Rich the Kid and Their Entourage Robbed at a West Hollywood Recording Studio

TMZ.com just posted that Usher, Rich the Kid and their entourage members were attacked Tuesday afternoon in broad daylight at a West Hollywood recording studio.

Multiple shots were fired -- possibly as many as 10 -- during the incident at Westlake Recording Studio ... according to eyewitnesses. TMZ.com reports the man who opened fired was running away from the studio when he started shooting behind him.

Law enforcement sources say Usher was in the studio, but not hurt ... and Rich the Kid was outside the studio when it all went down. Multiple entourage members were attacked though, and at least one bodyguard was badly pistol whipped.
L.A. County Sheriff's deputies are swarming the studio right now, searching for suspects and collecting evidence. 
It's unclear if anyone was hit when the shots were fired, but we're told the suspect or suspects made off with a ton of cash and jewelry.