Former “Gossip Girl” star and current lead singer of The Pretty Reckless is definitely not a shy high school girl anymore. The rock group has unveiled the music video for their “Heaven Knows”, featuring Momsen wearing nothing but a black robe which she later rips open to reveal a black symbol that covers the bare necessities. The clip was filmed by director Jon J and band member Taylor Momsen. “Heaven Knows” is featured in “Going to Hell”, The Pretty Reckless’ new album due on March 18.