Demi Lovato Performs 'Tell Me You Love Me,' Plays 'Who'd You Rather?' on 'Ellen'

Demi Lovato had some tough decisions to make in a game of "Who'd You Rather?" with Ellen DeGeneres: Rihanna or Harry Styles? Jesse Williams or Niall Horan? Kristen Stewart or Rihanna?

Lovato appeared in the entertaining segment on The Ellen DeGeneres Show Monday (Jan. 15), where she offered a powerful performance of "Tell Me You Love Me."

Speaking with Ellen, she also commented on the many confident swimsuit photos she's recently posted on Instagram.

"I want to show my fans that it's possible that they can get to that self-love," she said.

Watch the clips from Ellen below. (Spoiler: She's really into Rihanna -- but who isn't?)