Lady Gaga visited Jimmy Kimmel Live! (dressed notably, of course) to discuss her sense of style, recording her album on buses, and how to properly prepare meat.
Beyonce appeared on Late Night with Jimmy Fallon to discuss the making of her new album and her visit to the Great Wall of China.
Matt LeBlanc stopped by the Tonight Show to talk to Jay Leno with his Emmy nominations for Episodes, his mother's reaction to the news, and his competition in the running.
Finally, Louis C.K. graced the Late Show set to share a fantastic comedy bit with David Letterman and the audience.