James admitted Mariah did NOT want to sing on Carpool Karaoke

There’s nothing we love more than getting some juicy behind-the-scenes goss from our favourite chatshow hosts.

Who was the biggest diva? Who had the biggest rider? You know, the classics.

So, when James Corden sounded like he was about to spill about a Carpool Karaoke guest recently, we held our breaths and wondered if we’d be right in thinking Mariah Carey lived up to her legendary rep.

And ladies, we WERE right.

According to The Late Late Show host, the One Sweet Day singer rocked up on the big day and announced that she just wasn’t feeling the music section of the segment, and suggested that herself and James just shoot the breeze instead.

Understandably stunned, James told Howard Stern that he had to just run with it anyway, saying: “I just thought ‘I’ve just got to go. I’ve just got to jump into it’.”

“Even if this bit is just me singing to Mariah Carey, it’s still on the show,” he reasoned.

Have a listen to this!