Shawn Mendes Joins 'Carpool Karaoke' 11:24
It's time for another edition of "Carpool Karaoke," and this time teen dream Shawn Mendes is James Corden's duet partner! Taking a break from his residency all week long at "The Late Late Show," Shawn joins James to debut some new music while also singing some of his classics like "Treat You Better." We even learn Shawn is a super huge Harry Potter fan (even looks a bit like him too)!