VIDEO : Harry Styles and James Corden Trade Clothes, Reenact Rom-Coms on 'Carpool Karaoke'

From taking over James Corden's monologue to trying his hand at a game of "Flinch," Harry Styles has had quite the week on The Late Late Show . The singer rounded out his four-night residency by joining Corden on the road for "Carpool Karaoke," over one year after appearing on the segment with One Direction back in 2015. Styles and Corden kicked things off with the solo star's first single "Sign of the Times," hitting all of the high notes in harmony all while air-drumming.