There's no denying both Britney Spears and Demi Lovato have The X Factor.

Both pop singers have enjoyed solo success after getting their starts as kids on Disney shows. (Lovato, 20, starred in the Camp Rock movies and in Sonny With a Chance from 2006 to 2009, while superstar Spears, 30, was a member of the storied 1993-1995 Mickey Mouse Club crew, which also included Justin Timberlake, Christina Aguilera and Ryan Gosling.)

VIDEO: Why Britney says the judges "ganged up" on her

Simon Cowell was instrumental in bringing on both ladies for the new season of his hit reality show, and he told Us Weekly earlier this week he's thrilled with how they're settling into their new gigs so far.

"They are really, really good," the TV exec shared about how impressed he is with his new co-judges. "And they do bring this kind of excitement and star power to the show, and they've done a great job. I've got to hand it to them."

VIDEO: Last season's champ Melanie previews her debut album for Us

Tell Us: Which new judge do you think is doing a better job: Britney or Demi?

This article originally appeared on Which X Factor Judge Do You Like Better: Britney Spears or Demi Lovato?