Its been a year since James Corden made his debut on The Late, Late Show and an internet sensation with his Carpool Karaoke. This is compilation of some of this seasons best moments from this viral segment. this video features stars like Sia, Iggy Azalea, Rod Stewart, Elton john, Jennifer Hudson, Mariah Carey, Justin Bieber, One Direction, Stevie Wonder, Jason Derulo, Adele, Carrie Underwood and Chris Martin of Coldplay