Britney Spears: 'Demi Lovato Is Cooler Than Me'
Britters pays tribute to her colleague on The X Factor USA...
Giving an interview to Simon Cowell.
She explained: "[Simon] was absolutely adorable on the phone, and he is so sweet. My make-up artist used to do his make-up, and we were joking around about me doing it.
"So I guess it was one of those meant to be things."
Si-Co was also in on the interview, and was keen to pay tribute to his two new lady judges.
He said: "It's quite difficult sometimes when you've got singers judging other singers, because they can be selfish.
"And I've watched this very carefully; these two want to find a star."