Demi Lovato Gives Update on Facial Injury That Left Them Needing Stitches, Debuts Nostalgic 'Substance' Video

Demi Lovato Evokes Old School Pop-Punk in ‘Substance’ Music Video

Demi Lovato crashes a red carpet with Paris Hilton on a motorcycle in wild new music video

Demi Lovato is Joined by Paris Hilton in Music Video for New Song 'Substance' - Read the Lyrics & Watch Now!