This Sick Beat: Cara Delevingne Shows Off Her Beatboxing Skills for Jimmy Fallon

As if Cara Delevingne wasn’t already impressive enough, the model and actress is, apparently, also musically inclined.

Jimmy Fallon Assembles the Starriest 'We Are the Champions' Cover Ever (VIDEO)

Jimmy Fallon and One Direction Sing 'Santa Claus Is Coming to Town' (VIDEO)

Take One Direction. Add Jimmy Fallon, the Roots, a bunch of classroom-grade musical instruments, some ugly Christmas sweaters and a beloved Christmas pop song.

What do you get?

The video that’s going to be taking over your day, that’s what.

WATCH: Jimmy Fallon and The Roots Perform as U2 on The Tonight Show

Jimmy Fallon’s pitch-perfect musical impressions are a Tonight Show staple at this point, but they still never fail to impress.

U2

Carrie Underwood Shines a Spotlight on Poverty

Listen up!

Carrie Underwood will headline the Global Citizen Festival on Sept. 27 on the Great Lawn of New York’s Central Park with Jay Z, No Doubt, The Roots and Tiësto.

The festival, which will air live on MSNBC, serves to highlight the issues surrounding global poverty, a cause very close to Underwood’s heart.

Watch: Idina Menzel Sings Frozen's 'Let It Go' Perfectly – with Classroom Instruments

You’ve seen "Let It Go" performed by a 9-year-old. You’ve seen it performed in Times Square. You’ve even seen it performed by Adele Dazim. But you’ve never seen it like this.

Watch 5 of Jimmy Fallon's Most Popular Late Night Moments, from Hashtags to Mom-Dancing

What do mom-dancing, hashtags and children’s instruments have in common? They’re all topics that Jimmy Fallon, with his one-of-a-kind ingenuity and enthusiasm, was able to mine for big laughs – and, once they hit the Web, big views.

Possibly more than any other show, Fallon’s Late Night understood the science of making comedy bits go viral. The formula was easy to explain, but hard to master: Take a celebrity, give him or her a trending topic and find a cutesy, nostalgic spin, then hopefully watch the views roll in.

Mariah Carey Gives Her Christmas Classic a Youthful Makeover

Mariah Carey’s “All I Want for Christmas Is You,” can be heard everywhere during the holiday season, but you’ve never seen it performed like this before!

First Listen: John Legend & the Roots Want You to 'Wake Up!'

John Legend and hip-hop band the Roots have teamed up to record Wake Up!, a funky, old school-inspired album featuring covers of classic songs from Marvin Gaye, Donny Hathaway and more.

“It says it all in the title,” John Legend says. “It’s saying we can’t depend on the older generation to fix everything for us; we gotta educate ourselves, empower ourselves and use the power that we have to make the world better.”