As if we needed another reason to love John Krasinski. 

The former Office star and Emily Blunt's other half took on Anna Kendrick on the latest episode Spike TV's Lip Sync Battle, which aired on Thursday night (Krasinski is an executive producer of the show). 

"Jimmy Fallon thinks he's a real good friend of Justin Timberlake's, but he ain't this good of a friend" the actor told host LL Cool J before adding, "Because I'm doing 'Bye Bye Bye'" 

Cue Krasinski lip syncing for his life to the 2000 hit while performing spot-on marionette moves—and giving the boybanders a run for their money. 

John Krasinski


No surprise, we can hardly contain our laughter as the 35-year-old star dances across the stage, showing off his best "Bye Bye Bye" wave (you know the dance move we're talking about) while wearing a headset microphone in true boyband (and Britney Spears!) fashion. 

"I heard my knee roll back. On the drop, it's bad, if we have ice it would be amazing" he joked to LL Cool J after taking the stage by storm. 

WATCH: The best of The Tonight Show lip sync performances!

John Krasinski, Lip Sync Battle

Scott Gries/Spike

"That's a marionette I do, every Friday, Saturday, Sunday" he added in reference to his dance moves, "It's kinda my thing."

Not to be outdone, Kendrick follows up Krasinski's performance by lip-syncing "Steal My Girl" (spoiler: there's a cameo by Emily Blunt).

Inspired by a recurring segment on The Tonight Show Starring Jimmy Fallon, Lip Sync Battle features a slew of celebs in its first season, including Malin Akerman, Jimmy Fallon, Julianne Hough Dwayne Johnson, John Legend and even Anne Hathaway, who hilariously performed Miley Cyrus' "Wrecking Ball" last week. 

PHOTOS: Musicians performing live on stage

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