Olivia Wilde stopped by The Tonight Show to discuss her stunts for Cowboys & Aliens (and to get a free jacket in the process!)

Steve Carell visited Jimmy Fallon on Late Night to sing a song about ending friendships, compare ""Ambiguously Gay Duo"" performances, and openly scorn the beach.

Entourage star Adrian Grenier showed up on Conan to chat about his awesome grandma.

Finally, David Letterman welcomed Julianne Moore to Late Night to tell a story about her last fast food excursion.