The 20-year-old Gossip Girl actress turned rock star shared the new poster promoting her band The Pretty Reckless' upcoming Going to Hell tour, which only features the band's name, the tour name and a racy topless photo of Momsen cupping her breasts.
The actress, who was known for her gothic-chic look, was nearly unrecognizable at Alice + Olivia's runway show during New York Fashion Week on Monday.
Instead of circling her eyes with dark shadow and black liner, Momsen opted for a neutral smokey eye with a glossy red lip, and it seemed as though her dramatic makeunder got two thumbs up by former costar Kelly Rutherford, who posed alongside the celeb at the fashion show.
"Your eyes,your eyes...So beautiful. Taylormomsen," Rutherford wrote.
However, something tells us this new look won't last throughout the tour.