Shawn Mendes Doesn't Hold Back In This Hilarious Carpool Karaoke Segment!

We learned so much about Shawn Mendes in this Carpool Karaoke segment!
Watch (above) the singer reveal to James Corden his love for the Harry Potter franchise, his fear of getting in fights with strangers, and how much he’d pay for a pair of Justin Bieber‘s used underwear!