The much-anticipated debut of Conan O'Brien in "The Tonight Show" host chair got a boost this week. It was announced that Will Ferrell will be O'Brien's first guest when he begins hosting on June 1. The musical guest on June 1 is also a big name--Pearl Jam.
Ferrell and O'Brien have a long-standing relationship. Ferrell was a favorite guest on O'Brien's "Late Night" show and also was Conan's last guest on that show when it ended in February.