Justin Bieber and James Corden teamed up for their third Carpool Karaoke session [1] after the Grammys on Monday night, and it was pretty epic. The two jammed out to Bruno Mars's "Uptown Funk" while dressed in matching white tuxes (that made them look like "waiters on a cruise ship"). The two then rifled through their postshow gift bags, and James was not impressed. While Justin got things like a Rolex watch, a free vacation, and a diamond bracelet, James got a map of LA, a candle, and a book. Watch the hilarious video above, and then check out Justin's adorable date for the evening [2]!