Last night on The Tonight Show with Jay Leno, Shaq made a surprise appearance and locked up Leno in the Jersey Shore tanning booth. Leno had been hailing Shaq's rap albums as the surefire way to get people to leave a slumber party. All this before Justin Timberlake discussed his three recent female co-stars on a star-studded lineup. Plus: Jason Segel of Bad Teacher revealed a fat, slovenly photo of himself in New Orleans ("This looks like a crime scene," remarked David Letterman); Laura Linney taught The Big C co-star Gabourey Sidibe how to sign dirty words, and Chelsea Handler's stumpy sidekick, Chuy, learned them; and Jimmy Fallon and Selena Gomez played "Shoe Golf" with a shameful fumble at the end. Watch our compilation to see what you missed.