David Letterman, seen here snapping a selfie with his replacement Stephen Colbert, will step down next week as host of the Late Show. Getty Images hide caption

itoggle caption Getty Images

Jimmy Fallon during his debut Monday as host of NBC's The Tonight Show. Theo Wargo/Getty Images for 'The Tonight Show' hide caption

itoggle caption Theo Wargo/Getty Images for 'The Tonight Show'

President Obama jokes with Jay Leno during a commercial break at the taping of his appearance on The Tonight Show with Jay Leno on Tuesday in Los Angeles. Jacquelyn Martin/AP hide caption

itoggle caption Jacquelyn Martin/AP

Seth Myers performs during the Comedy Central South Beach Comedy Festival at the Fillmore Miami Beach in Miami Beach, Fla., April 18. NBC announced Sunday that Myers is the new host of Late Night. Jeff Daly/Jeff Daly/Invision/AP hide caption

itoggle caption Jeff Daly/Jeff Daly/Invision/AP

Jimmy Fallon, right, and Jay Leno at the 2013 Golden Globe Awards in Beverly Hills. Robyn Beck/AFP/Getty Images hide caption

itoggle caption Robyn Beck/AFP/Getty Images