Mary J. Blige, Leona Lewis Perform on 'X Factor' Finale

The Christmas spirit was in the air during Thursday’s finale of “The X Factor.” Before boyfriend-girlfriend duo Alex Kinsey and Sierra Deaton were crowned winner, Mary J. Blige and Leona Lewis decked the stage with festive performances.

The Queen of Hip-Hop Soul performed her jazzy rendition of “Rudolph, The Red-Nosed Reindeer,” accompanied by a full band and producer David Foster, while “X Factor” U.K. champ Leona Lewis unwrapped a Motown-inspired performance of “One More Sleep” off her Christmas, With Love album. The British singer also joined the winners to duet on her hit “Bleeding Love.”

Watch the vocal powerhouses command the stage with their seasonal sets.