AceShowbiz -

Demi Lovato is indeed leaving "The X Factor (US)". After reports emerged that the "Skyscraper" songstress would not return to the show as a judge for the fourth season, Simon Cowell confirmed the news.

"I always knew she wasn't coming back because she's touring, so I knew that," the British music producer said on the red carpet after the Top 3 final performance show on Wednesday night, December 18. Lovato herself told reporters after the show, "In 2014, I'm going to dedicate it entirely to music, touring and making a new album."

Earlier the same day, a source told People.com, "She plans to spend next year completely focused on her music." The source added that Lovato "had a great run and a good time," but the show's demanding schedule conflicted with the former "Sonny with a Chance" star's plans for 2014.

Lovato joined "X Factor (US)" in its second season, being added to the judge line-up along with Britney Spears. She returns for her second season this year.

Cowell, meanwhile, recently claimed a renewal for the show was happening. "The show will be back next season," he confidently said. He also revealed his dream team of judges would include Paula Abdul, Randy Jackson and Miley Cyrus.