John Krasinski is a man of many talents.
The other night on Late Night, The Office star and host Jimmy Fallon didn't just challenge each other to a sing-off. Oh no, that would have been too generic.
They had a lip-sync-off!
Watch the clip below, as they lip sync classics from Katy Perry, Boyz II Men and more. Who do you think prevailed? Jimmy? John? We'd say viewers: