John Cena, Will Smith and Ariana Grande star in Apple Music's Carpool Karaoke teaser

Apple Music has released a teaser ad for its forthcoming Carpool Karaoke series, enlisting celebrities like John Cena, Will Smith, Alicia Keys and original host James Corden to front the spot. 
The ad debuted at the Grammys on Sunday night, and comes six months after Apple acquired the rights to the viral juggernaut. 
The series, which will stand alone from The Late Late Show original segment, will follow the same format as Corden's brainchild with a few Apple-esque upgrades.