Strip: Jessie J performs brand new track in London

Singer Jessie J performed previously unreleased song during a small gig in a bar in London.

Entitled "Strip", the song was dropped from her album "Alive", released last year, and was written in collaboration with Claude Kelly.

“Strip”, I talked about this song last year, is one of many that have not included on the album 'Alive'., and I adore the lyrics tell every truth about my present, "wrote the singer to post the video on Youtube." So I sang today in an intimate and acoustic performance in a small bar in London (no one knew, I went up there and sang. It made me feel good)," she said.

Check out the surprise performance of "Strip" below: