Who's psyched for Gossip Girl tonight? We are, we are! Three reasons why: 1. We were on the set during the taping of this episode, which features a debutante ball. 2. It's Gossip Girl -- duh! And 3. Because The Pierces are performing! Read our interview with the girls, and meet 'em before you see 'em!

Check this promo for this super steamy episode featuring The Pierces' "Three Wishes":