Jimmy and The Roots join Paul McCartney, Matthew McConaughey, Reese Witherspoon, Scarlett Johansson, Seth MacFarlane and Tori Kelly for an a cappella rendition of “Wonderful Christmastime.” Subscribe NOW to The Tonight Show Starring Jimmy Fallon: http://bit.ly/1nwT1aN Watch The Tonight Show Starring Jimmy Fallon Weeknights 11:35/10:35c Get more Jimmy Fallon: Follow Jimmy: http://Twitter.com/JimmyFallon Like Jimmy: https://Facebook.com/JimmyFallon Get more The Tonight Show Starring Jimmy Fallon: Follow The Tonight Show: http://Twitter.com/FallonTonight Like The Tonight Show: https://Facebook.com/FallonTonight The Tonight Show Tumblr: http://fallontonight.tumblr.com/ Get more NBC: NBC YouTube: http://bit.ly/1dM1qBH Like NBC: http://Facebook.com/NBC Follow NBC: http://Twitter.com/NBC NBC Tumblr: http://nbctv.tumblr.com/ The Tonight Show Starring Jimmy Fallon features hilarious highlights from the show including: comedy sketches, music parodies, celebrity interviews, ridiculous games, and, of course, Jimmy’s Thank You Notes and hashtags! You’ll also find behind the scenes videos and other great web exclusives. Jimmy Fallon, Paul McCartney and “Sing” Cast Perform “Wonderful Christmastime” (A Cappella) http://www.youtube.com/fallontonight

Billie Eilish spoke candidly with Ellen about living with Tourette Syndrome, and why she decided to go public with it only last year. Plus, the 17-year-old pop star talked about celebrities like Paul McCartney and Sporty Spice, who she couldn’t believe were fans of hers. #TheEllenShow #BillieEilish #Ellen

Stock Aitken Waterman (abbreviated as SAW) are an English songwriting and record production trio consisting of Mike Stock, Matt Aitken, and Pete Waterman.

Stock Aitken Waterman (abbreviated as SAW) are an English songwriting and record production trio consisting of Mike Stock, Matt Aitken, and Pete Waterman.