'The X Factor' alum Jeff Gutt has "zero trepidation" about first tour as Stone Temple Pilots front-man
Demi Lovato on her troubled past: "I didn't think I would make it to 21"
Demi lovato discusses sobriety and her jealousy of Miley Cyrus
Demi Lovato's pet dog dies in an accident
Demi Lovato dedicates 'Warrior' to Bruce Jenner in concert
Demi Lovato celebrates three years sober, says she wouldn't be alive without boyfriend Wilmer Valderrama
Demi Lovato rushed to hospital with health scare, doing much better now
Demi Lovato details continued struggle with eating disorder
Simon Cowell reportedly "bored" with girlfriend Lauren Silverman, she feels "discarded" by him
Demi Lovato and Wilmer Valderrama still "very much in love"
Demi Lovato urges Americans to fight for marriage equality
Demi Lovato reveals gay grandfather, "He was brave enough to come out in the 1960s"
Simon Cowell shares new photo of his baby son Eric during "bath time"
Kelly Rowland seems to confirm she's expecting a baby with new husband Tim Witherspoon
Kelly Rowland: Destiny's Child members are my soul mates
Kelly Rowland marries her manager Tim Witherspoon
Simon Cowell shares new photos of his baby boy Eric
Demi Lovato opens up about troubled past and bipolar disorder
Simon Cowell: I regret my Lauren Silverman affair, but the result of it steered me from going down a bad path
Demi Lovato nude photos leak out online
Demi Lovato slams Lady Gaga for glamorizing eat disorders
Simon Cowell: I love being a dad, might have more children now!
Simon Cowell and girlfriend Lauren Silverman have a baby boy
