Bringing her racy stage show to the Windy City, Taylor Momsen was among the performing acts during day two of the Lollapalooza Music Festival in Chicago, Illinois on Saturday afternoon (August 6).

The former "Gossip Girl" star joined alongside her The Pretty Reckless bandmates Jamie Perkins, Mark Damon and Ben Phillips for a backstage portrait session at the Grant Park venue before hitting the stage for their midday set.

The Lollapalooza stop comes as Miss Momsen and co. are set to play an acoustic set later today at the Hard Rock Hotel before heading to Japan for Summer Sonic gigs on August 13-14th.

The group will later be joining Evanescene as an opening act for shows in England and Germany in November, with Taylor announcing the news on her 18th birthday - which she celebrated on July 26th.