Jimmy Fallon and the Cast of ‘Sing’ Have A ‘Wonderful Christmastime’ (VIDEO)

The Tonight Show Starring Jimmy Fallon - Season 4
THE TONIGHT SHOW STARRING JIMMY FALLON -- Episode 0595 -- Pictured: From top to bottom (l-r) Scarlett Johansson, Seth MacFarlane, Tariq "Black Thought" Trotter, Paul McCartney, Reese Witherspoon, Ahmir "Questlove" Thompson, Jimmy Fallon, Kirk "Captain Kirk" Douglas, Tori Kelly, Matthew McConaughey, and James Poser sing "Wonderful Christmastime" on December 20, 2016

It was a “Wonderful Christmastime” on Tuesday night’s The Tonight Show Starring Jimmy Fallon.

The host and his in-house band The Roots were joined by the cast of the new animated movie musical Sing for a Brady Bunch-style performance of the Paul McCartney classic (McCartney himself made an appearance). The film’s stars Scarlett Johansson, Seth MacFarlane, Reese Witherspoon, Tori Kelly, and Matthew McConaughey all lent vocals to this a cappella version of the song.

Watch the full performance by Jimmy and his “merry” men—and women—below. Sing is is theaters now.