Jimmy Fallon: Entertainer Of The Year
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.
