Watch Justin Bieber and James Corden sing 'Smelly Cat' and arm wrestle for Carpool Karaoke

Wife Guy and Justin Bieber and his doomed mustache (RIP) joined Late Late Show host James Corden to "drive" around, belt out some tunes, test out some choreography, talk about whether Biebs could take Tom Cruise in a fight, and croon "Smelly Cat" from Friends.  We do not recommend attempting those dance moves while driving, or possibly ever. Read more... More about Justin Bieber, James Corden, Carpool Karaoke, The Late Late Show With James Corden, and Entertainment