Demi Lovato vs. Britney Spears - Sorry Not Sorry + Slumber Party Mashup Music Video

Demi Lovato & Britney Spears arrive for X FACTOR auditions

The X Factor Debut Britney Spears Demi Lovato Make

Britney Spears And Demi Lovato Become The New X Factor Judges - Hollywood Hot

Britney Spears, L.A. Reid and Demi Lovato at The X Factor finalist party in Beverly Hills.

Britney Spears, Demi Lovato On X-Factor

Britney Spears et Demi Lovato : un duo de charme et de choc pour "X Factor" !

Demi Lovato & Britney Spears at X FACTOR premiere

MTV VMA 2015 : Britney Spears, FKA twigs, Demi Lovato... renversantes !

Demi Lovato y Britney Spears en Factor X USA

Jonas Brothers, Britney Spears, Demi Lovato X-mas: Crunched

Britney Spears FREAKS Out, Spits On Demi Lovato During X For Auditions!

The XFactor USA Britney Spears Demi Lovato Judge

Britney Spears, Demi Lovato, Avril Lavigne and more at Wango Tango - Hollywood.TV

Kris Jenner Joins Demi Lovato and Britney Spears For X-Factor Viewing Party [2012]

Britney Spears y Demi Lovato promocionan su participación en The X Factor

Britney Spears et Demi Lovato sont tendance pour les auditions de X Factor

Britney Spears y Demi Lovato se unen al equipo de jueces de X Factor de Estados Unidos

Britney Spears und Demi Lovato: Fashion-Queens bei X-Factor

Britney Spears and Demi Lovato Are Fashion Forward at 'X Factor' Auditions

Attention vs. Sorry Not Sorry (Charlie Puth-Demi Lovato MASHUP) - Sam Tsui & Alyson Stoner