Taylor Momsen went the extra mile to live up to her band name when she gave a fan a lap dance during a The Pretty Reckless show in Barcelona, Spain on Wednesday.

According to the UK's Daily Mail, the 17-year-old was spotted on stage stripping down and grinding on a female audience member amidst a group of topless girls. At another point in the evening, Momsen reportedly  stood up to sing, but sunk to her knees again as another fan grabbed her breasts.

While the former 'Gossip Girl' star has done her best to separate herself from the Upper East Side character she played on the CW series, her recent behavior has raised eyebrows. Many pop stars have also indulged in on-stage lap dances -- most recently Rihanna on her Loud tour -- but at 17, Momsen is still underage.

In 2009, fellow teen Miley Cyrus was under scrutiny for her controversial Teen Choice Awards performance of 'Party in the U.S.A.' The then-17-year-old danced atop an ice cream cart with a pole attached to it, receiving flack for the exotic dancer innuendo.