That Metallica & Billy Eichner Stunt Was For Apple Music's Carpool Karaoke

Carpool Karaoke is insufferable, but if anyone can inject some life into the lifeless segment, it's Billy Eichner. Late Late Show host James Corden is ceding some control of the concept to a new TV series that will debut on Apple Music later this year. The show will pair up artists with different hosts, including…