We know this video is a bit long, but every minute is worth watching thanks to global superstar Sir Paul McCartney sitting in the passenger seat! The former Beatle joins James Corden for an epic segment of "Carpool Karaoke" on "The Late Late Show." The two even go and see McCartney's childhood home, sing songs at a pub and explore Liverpool (Penny Lane!). The pair also get emotional during a sweet moment when singing the classic "Let It Be" and when Paul invites James on stage to sing "Hey Jude." Excuse us while we wipe away these happy tears!