Watch Anna Kendrick Trade Her Cups For Classroom Instruments On Fallon

Plus, Darlene Love joins her performance

Riverdale Meets Charlie Brown In This Hilariously Goth Parody

Co-starring the *real* 'Riverdale' cast

Why Taylor Swift's Latest Performance Moved Jimmy Fallon To Tears

No dry eyes at 'The Tonight Show'

Camila Cabello's New Costume Is Just As Red-Hot As Britney Spears's Iconic Catsuit

The 'Havana' singer was on πŸ”₯πŸ”₯πŸ”₯

Demi Lovato Pulled Off A Red-Hot 'Sorry Not Sorry' Performance

Nailed. It.

Fifth Harmony Finally Revealed Their New Album's Release Date And Title

Harmonizers, brace yourself

Miley Cyrus Surprised New York Commuters With An Acoustic Concert On The Subway

But her disguise didn't fool anyone

Niall Horan And Jimmy Fallon Are In A Metal Band Now

It may have been just for a single song, but this track is FOREVER

Emma Watson Is Still Mortified About Her First Time Meeting Jimmy Fallon

Prepare for secondhand embarrassment

Watch Demi Lovato Smooch All Over Ed Sheeran’s Face

She’s in love with the shape of Ed β€” as a pillow

Emma Watson Almost Got Run Over By A Horse Making Beauty And The Beast

Actors suffer for their art, ya know?

Aaron Paul’s Prom-Crashing Story Has One Epic Ending

Why wasn't he at MY prom?!

Ed Sheeran Shook A Banana Wildly For The Toy Instrument Version Of β€˜Shape Of You’

Turns out it sounds just as good in the classroom

Elijah Wood Analyzing The Bachelor Is Better Than The Actual Bachelor

Wood’s coming-of-age tale is him learning to love this β€˜really weird’ show

Crocodile Hunter Steve Irwin's Son Is A Carbon Copy Of His Late Dad

Robert Irwin carries on his dad's legacy

Dakota Johnson Can't Keep A Straight Face During Fifty Shades Mad Libs

Anastasia Steele meets 'Anastasia Barf Barf' on 'The Tonight Show'

Let Vanessa Hudgens Serenade You With The Friends Theme Song

She sang it as a duet with Jimmy Fallon

12 Celeb Squads Who Totally Ruled The Golden Globes

Setting the bar high for squad goals in 2017

Jimmy Fallon Compares Donald Trump To King Joffrey At The Golden Globes

Plus, the forever-jovial host recreated 'La La Land' with all your favorite stars

Emma Stone Auditioned For β€˜All That’ As A Possessed Babysitter

And reenacted it for posterity

Justin Timberlake And Jimmy Fallon Can’t Keep It Together For An β€˜Ironic’ Sing-Along

Justin Timberlake and Jimmy Fallon laughed their way through a summer camp sketch and sang Alanis Morissette's 'Ironic' on 'The Tonight Show'

Ashton Kutcher Pulled A SpongeBob And Ripped His Pants On National TV

Ashton Kutcher guest-starred on 'The Tonight Show' and accidentally ripped the crotch of his pants.

Shawn Mendes Parodies Justin Bieber With A Song About Hiding His Bong

Shawn Mendes plays the Hashtag Game on 'The Tonight Show,' parodying songs by Adele, Coldplay, and, most hilariously, Justin Bieber.

Miley Cyrus Gives Off Hannah Montana Vibes During β€˜Ew!’ On The Tonight Show

Miley Cyrus throws it all the way back to her 'Hannah Montana' days while stopping by Jimmy Fallon's 'The Tonight Show.'