David Letterman News & Pictures

Lance Armstrong arrives at the Ed Sullivan Theater in NYC for his June 17th appearance on the Late Show with David Letterman.
Cyclist and cancer survivor Lance Armstrong hit the Late Show stage to discuss his new wellness website, Livestrong.com, which launched Tuesday.

Spencer Pratt, one-half of reality TV’s Most Annoying Couple, visited the Late Show with David Letterman Friday. Video footage of Spencer Pratt on Letterman after the fold.

Whoopi Goldberg took a break from her gig as a chatty co-hostess of ABC The View to sit down with late night comic David Letterman. Check out this video from Whoopi’s Friday The 13th appearance on the Late Show.

Seven-time Grammy Award winner Alanis Morissette promoted her new album, Flavors of Entanglement, with a performance on the Late Show with David Letterman Tuesday.

Mark Wahlberg talked dogs, parenthood, and his new thriller The Happening, opening Friday, on the Late Show with David Letterman last night.