How do you turn a 20th-century institution like ''The Tonight Show'' into a 21st-century viral hit? Give it to Jimmy Fallon. After taking over Jay Leno's desk in February, the comic-turned-host-turned-merry-prankster has boosted viewership on air and online with laughs, celebrity high jinks, and musical mayhem — and there's more to come in 2015.
Late Night with Jimmy Fallon
Jimmy Fallon and Lindsay Lohan ditch twerking for scrumping
Tina Fey talks Emmys wardrobe malfunction with Jimmy Fallon
Jimmy Fallon, The Roots, and muppets sing 'Sesame Street' theme
Joseph Gordon-Levitt competes in Fallon's 'lip-synch battle for the ages'
Justin Timberlake and Jimmy Fallon: Two Twits making hashtag happen