Stevie Wonder was James Corden's latest guest for Carpool Karaoke on Monday, and within minutes, he quickly became the best one yet. Stevie started out the session by getting into the driver's seat, which understandably made James very nervous. But after switching spots, the pair didn't waste any time getting the party started. After belting out duets to a few of Stevie's greatest hits, James got the legendary singer to call his wife, Julia Carey. Stevie then surprises Julia by singing "I Just Called to Say James Loves You," which adorably brought the late-night host to tears. Watch the amazing clip above.
See more carpool karaoke sessions: