'Watch What Happens Live': Aaron Tveit Reveals 'Gossip Girl' Drama (VIDEO)

On "Watch What Happens Live," Aaron Tveit revealed some backstage drama from his time on "Gossip Girl" and why he's not too happy with Blake Lively.

Tveit, who played Nate Archibald's (Chace Crawford) cousin Tripp on the series, had this to say about his stint on "Gossip Girl": "It was my birthday, and Blake took three hours to come out of her dressing room. So, if Blake's watching, I want you to think that I remember that, and you were cool, but that wasn't very nice."

Tveit, who can next be seen in USA Network's "Graceland," said his best on-screen kiss was with America Fererra on "Ugly Betty." Why? Because she kissed “like she meant it."

Tune in to "Watch What Happens: Live" every Sunday through Thursday at 11 p.m. ET on Bravo.

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