James Corden recruited an assortment of 2016 Carpool Karaoke guests, like Adele and Lady Gaga, for a joyful performance of Mariah Carey's 'All I Want For Christmas.'
James Corden is back with another Carpool Karaoke, this time with Sia, and Jimmy Fallon plays Donald Trump as the cast of "Fuller House" gives him a heart-to-heart.