Jimmy Fallon's already announced that he's got U2 as the first musical guest on  February 17.  Now he's announced some of the other guests you'll be seeing during his first week.

Of course Justin Timberlake, who will be on The Tonight Show Friday, February 21.  Lady Gaga will appear on the show on Tuesday, February 18, and the rest of the week includes appearances by Tim McGraw and Arcade Fire.

Fallon's non-musical first-week guests include Will Smith, Jerry Seinfeld, Bradley Cooper and Will Ferrell.