Jimmy Fallon’s Tonight Show has produced another fun a cappella one-off. Whereas last year Fallon got the cast of The Force Awakens to sing the Star Wars theme, this time he brought together Paul McCartney, the Roots, and the cast of Sing — including Reese Witherspoon, Scarlett Johansson, Matthew McConaughey, Seth MacFarlane, and Tori Kelly — performing McCartney’s wrongfully maligned holiday spirit-lifter “Wonderful Christmastime.” It’s a pleasant experience, so watch below.