VIDEO: James Corden gets a singing lesson from Sia in a new Carpool Karaoke

James Corden has found the perfect interviewing formula with his Carpool Karaoke series.

The Late Late Show host has had everyone from Justin Bieber to Stevie Wonder - not to mention Adele, One Direction and Chris Martin - keep him company as he drives to work, singing songs and discussing whatever pops into his head. Nowhere has this format worked better than in the most recent edition with Australian singer Sia, as Corden found the perfect balance of discussing serious matters like drug addiction while also picking up some singing tips to keep everything light-hearted. And obviously Corden remembers to bring up the incredibly important issue of the existence of aliens. https://youtu.be/S_RzBeC5ZJY