Jenny Humphrey may have fled the Big Apple with her return date unclear, but Gossip Girl star Taylor Momsen made an appearance yesterday with her Pretty Reckless band mates.

Looking every bit the part of a rock star, the 16-year-old (!) signed a few autographs, then posed for the cameras with her group outside the Fox Studio Building in New York City.

Here's Taylor with Jamie Perkins, Ben Philips and Mark Damon ...

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