Justin Bieber, Ariana Grande and Kendall Jenner Lip-Sync 'I Really Like You'

A bunch of celebrities need to tell you something: They really, really, really, really, really, really like this song.

Justin Bieber, 21, posted a video on YouTube on Tuesday showing how much he and his famous friends enjoy the latest single by his pal Carly Rae Jepsen, “I Really Like You.”

Tom Hanks (and His Tinder Profile) Star in Carly Rae Jepsen's New Video

For no apparent reason, except that it’s the weekend, Oscar-winning actor Tom Hanks stars in the video for Carly Rae Jepsen’s new single, “I Really Like You.”

He lip-syncs, he emojis and he’s on Tinder – racking up those right swipes.

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.

Carly Rae Jepsen as Cinderella on Broadway: Check Out Her Beautiful Gown

You can call her Cinderella.

Carly Rae Jepsen is gearing up for her big Broadway debut in Rodgers & Hammerstein’s Cinderella on Feb. 4, and, as a treat to fans, she’s now shared a pair of Instagram photos from behind the scenes.

The “Call Me Maybe” singer, 28, looks like real royalty in a black-and-white snapshot posted on Tuesday, as she wears a voluminous ball gown with plenty of bustle. From the photo’s caption, it’s clear she loves her new look.

Carly Rae Jepsen Set to Make Broadway Debut in Cinderella

Cinderella obviously has a cell these days.

Call Me Maybe singer Carly Rae Jepsen will make her Broadway debut in Rodgers & Hammerstein’s Cinderella, according to The Hollywood Reporter.

“Broadway has been a dream of mine since I was a little girl,” said Jepsen, 28, “and I look forward to working with this incredibly talented cast to tell this classic tale.”

Carly Rae Jepsen Plays Santa (Though You Won't Find Her In a Red Velvet Suit) This Christmas

Carly Rae Jepsen's First Pitch at Rays Game Goes ... Astray

Carly Rae Jepsen is usually pitch perfect.

But the “Call Me Maybe” singer’s first pitch Sunday night at a Tampa Bay Rays home game needed a little work.

As seen in a video that is currently trending like crazy, it all went wrong with the wind-up and release.

Carly Rae Jepsen's New Candie's Ads: Exclusive First Look

What’s different about the star’s latest campaign for Candie’s?

Carly Rae Jepsen Works Hard to See Matthew Koma Once a Week

Carly Rae Jepsen may have a handsome musician boyfriend, but the singer admits maintaining a relationship and a pop star schedule is “hard work.”

“It takes a lot of planning and organization which, if you know me, are two of my least awesome skills,” the 27-year-old told PEOPLE at Seventeen’s “Pretty Amazing” Luncheon in New York on Thursday.

Carly Rae Jepsen Is a Redhead!

On the heels of two major Hollywood hair color changes, Carly Rae Jepsen followed Anne Hathway and Demi Lovato’s lead and lightened up her locks. But instead of going blonde, the “Call Me Maybe” singer went red!