HOLLYWOOD, CA - FEBRUARY 28: Sam Smith attends the 88th Annual Academy Awards at Hollywood & Highland Center on February 28, 2016 in Hollywood, California. (Photo by Frazer Harrison/Getty Images)

James enlists Sam Smith to help him navigate the Los Angeles Carpool lane.

During the ride, Sam shares that James was one of the first celebrities to notice and promote his music and Fifth Harmony jumps in the car for a surprise and song!