Justin Timberlake and Gaga are Among the First to Hang Out With Jimmy Fallon on the ‘Tonight Show’

Goodbye Cali., hello Rotten Apple! The changing of the guard at "The Tonight Show" has finally happened.

Jay Leno is finally going to go spend his billions and Jimmy Fallon will be the new "Tonight Show" host. The SNL alumni has been an obvious choice as he has had the "Late Night" show ever since the Conan debacle.

On Monday, NBC added more famous faces to the lineup for the Jimmy's first week replacing Jay Leno.  His pal Justin Timberlake, Lady Gaga, U2, Arcade Fire and Tim McGraw will all be performing for Jimmy next week, as the late-night show makes its much-anticipated return to its original home in New York City.