By Jethro Nededog LOS ANGELES (TheWrap.com) - Sara Bareilles is one and done. The singer won't be returning to the fourth season of NBC's "The Sing-Off," TheWrap confirms. Sources close to the singer-songwriter tell EW that she wants to "focus on her music." Bareilles joined on Season 3 after...

'X Factor' judge reveals she declined opportunity to record the hit single

Former Pussycat Doll Nicole Scherzinger has released a video for her new single, 'Boomerang.'

'I'm so excited to join the UK X Factor family,' Scherzinger tweeted on Friday

NEW YORK/LOS ANGELES (Reuters) - Britney Spears and former Disney Channel star Demi Lovato officially joined the U.S. version of "The X Factor" on Monday, leading creator Simon Cowell to pledge the second season would "seriously kick butt" when it returns in September. Spears, 30, the world's biggest pop phenomenon of the 2000s, and Lovato, 19, ...