Now we know: U2 appears on the roof of 30 Rock ... by a guest live in-studio on the “Tonight Show Starring Jimmy Fallon”: the opening notes of Led Zeppelin’s “Stairway to Heaven.” ...

Jimmy Fallon Reveals His Macy’s Thanksgiving Day Parade Injury and Why It Won’t Stop His Appearance This Year (Exclusive) Gwen Stefani and Jimmy Fallon Reimagine 'Hollaback Girl' Using ...

Jimmy Fallon will take over "The Tonight Show" next Monday and he'll have a huge lineup to open his premiere week ... Among the big guests are Michelle Obama, U2, and Justin Timberlake.