Taylor Momsen got to spend the day with the guys on the set of Gossip Girl on Thursday, though she shared the boys' attention with a crowd of female fans lining up for photos. We don't need any extra encouragement to keep tuning in on Monday nights, but the CW got us even more excited by using Britney in its newest Gossip Girl promo all about the wonder that is Chuck Bass. As always, the ad focuses on the risqué, but "Womanizer" just might be the perfect Chuck anthem.
To see more of the kids on the set including Penn, just
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