Trey Songz

Trey Songz got right in the middle of a full-on brawl between a group of girls outside a New York City nightclub last week -- and TMZ has the fist-swinging footage. As we previously reported, a gaggle of females tried to get up close and personal with Trey inside Juliet Supper Club -- but Trey's…

Trey Songz was at the center of a nightclub brawl this week in New York City, but it was the kind Kramer would approve of ... it was a CATFIGHT!!! Sources inside the Juliet Supper Club tell TMZ ... a group of girls were trying to get close to Trey on Monday night, and his date for the evening was…