Simon Cowell

The music mogul - who gave the world One Direction and Little Mix - is a huge fan of Adele and admires the way she has reached top in music while staying true to herself.

He said: "You wouldn't have predicted this years ago when we were such an image-infatuated business.

"Here is somebody who has done everything her own way, gone back to basics and achieved this incredible success. She's one of the most down-to-earth people you'll meet - and she hasn't changed a bit!"