Jimmy Fallon throws on a disguise to prank the coaches in a sneak peek for 'The Voice.' The 'Tonight Show' host goes on to sing Tony Bennett's classic song, 'I Left My Heart in San Francisco.' John ...

Donning a long gray beard and mustache, Jimmy interrupted host Carson Daly as he did his intros to the upcoming episode. "Is this the part of the show where you take questions from the audience?" ...

On tonight’s special “The Road to the Playoffs” episode of The Voice, which will feature the season’s best moments from the Blind Auditions through the Knockout Rounds, including some hilarious ...