Harry Styles Gets Wish Granted by Stevie NicksIn addition to acting on the show, Styles talked about the role he played in the upcoming movie,  Dunkirk, which opens in theaters Friday (July 21).
Watch Liam Payne Perform 'Strip That Down' on 'The Tonight Show' The performance featured backup dancers in a big neon frame and Payne gave a shoutout to the talk show host.
Watch Lil Yachty Rap about 'The Simpsons'"You’ve got Homer, Marge, Lisa and Bart/ You got Maggie and Santa’s Little Helper to start."
Watch Niall Horan Try to Write a Song about 'Quickly Clicky Pens'Horan and Jimmy Fallon have fun in the segment 'Instant Song Challenge.'
Jimmy Fallon Pays Tribute to David Bowie in SNL MonologueIt wasn't funny, but it was awesome.
Watch Harry Styles and Jimmy Fallon's Snappy New SNL PromoThis will be the first time the show has been aired live on the East and West Coast.
Demi Lovato and Jimmy Fallon Play Teen Girls in "Ew!' SketchDemi held her own in the comedy department, practicing kissing on an Ed Sheeran pillow (Fallon's had Mario Lopez's face on it).
Migos Performs Office Supplies 'Bad and Boujee' Cover on FallonJimmy Fallon and the Roots are resourceful — when they're in a bind for musical instruments, they can always reach for a paper clip or a stapler. And with Migos on hand, creative inspiration was abundant.
Jennifer Lopez Struts Her Stuff in Silly Dance Battle on 'Fallon'Fallon went first, making up a silly dance called, “Skinny Jeans.” Lopez proceeded to show him up with a very J.Lo version of “Washing Machine Spin Cycle.”
Jimmy Fallon and Kevin Bacon Spoof the KinksThe Kinks' "Lola" is a very simple song to sing if you know how to spell. If you don't, it's a very difficult song to sing.
Paul McCartney Joins Fallon, 'Sing' Cast For 'Wonderful Christmastime'Cast members from the new movie Sing were joined by none other than the songwriter himself.
Watch Niall Horan Perform 'This Town' on 'The Tonight Show'Horan is the second member of One Direction to play solo on the program. Zayn Malik performed “It’s You,” from 'Mind of Mine' in February.

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