Two Zachs, One Couch (w/ Zach Woods & Zac Efron)

James asks Zac Efron and Zach Woods about growing up and James randomly pegs one of Efron's old nicknames, Z-Bone, before educating his guests on the band O-Town (James's nickname for Orlando Bloom). Only on CBS. Get the CBS app for iPhone & iPad! Try it free! Corden differentiates his show by offering viewers a peek behind-the-scenes into the green room, bringing all of his guests out at once and lending his musical and acting talents to various sketches. Additionally, bandleader Reggie Watts and the house band provide original, improvised music throughout the show. Since Corden took the reigns as host in March 2015, he has quickly become known for generating buzzworthy viral videos, such as Carpool Karaoke."