Hilary Duff Is Reading Salem Falls

Hilary Duff makes her way to the set of Gossip Girl in New York City on Tuesday (October 13).

The 22-year-old singer/actress was carrying the book Salem Falls, a mini make-up bag and a bottle of water as she made her way on set.

Penn Badgley, confirmed to MTV News that Lady Gaga will in fact be making an appearance on Gossip Girl. “Yeah, she’s a part of the threesome – I’m kidding,” he joked on the red carpet for the premiere of his new flick, The Stepfather. “She’s not, but there is a threesome and there is Lady Gaga, so you gotta keep watching.”

10+ pictures of Hilary Duff reading Salem Falls…