"They were giving him [Brown] the middle finger. They got into each other's faces and were shouting at each other," Gutierrez said.

"Chris told Drake to f--k off, and the next thing I could hear is the sound smashed glass and mayhem started.

"Somebody in Drake's group - I don't think it was Drake - swung at Chris, but missed.

"Chris didn't swing back, he just tried to brush them off. He told us, 'Let's go,' but there were bottles flying at us. I saw one bottle was thrown, it looked like a vodka bottle, and hit Chris on the face," she said.

"The anger from Drake's entourage was terrifying."

The bloodshed touched off a full-scale brawl in the basement club - where at least five bystanders were injured by flying bottles .

W.i.P., connected to the much-larger Greenhouse club, was jammed at the time with a slew of celebrities - including Mary J. Blige, Trey Songz, Wale, Ne-Yo and NBA star Tony Parker - and their hangers-on.