After two seasons of bickering with Simon Cowell on "X Factor," Demi Lovato reportedly plans to exit from the series after this season.

According to People, the singer will leave "X Factor" to focus on her music career. "She had a great run and a good time," a source told the website about Lovato's future with the Fox singing competition series. "She plans to spend next year completely focused on her music."

A rep for the singer has told MTV News this: "We don't have a comment on it, but Demi is planning to be on the press carpet after the show today and I'm sure will have more to say."

The show's season-three finale airs Thursday.

Lovato joined "X Factor" in 2012 after a major shake-up at the judge's table following its first U.S season. She joined Cowell and L.A. Reid, who also appeared on season one, as well as fellow newbie judge Britney Spears. Following season two, Spears and Reid left the series and were replaced by Kelly Rowland and Paulina Rubio.

In addition to her mentor role on "X Factor," Demi, who released a self-titled album earlier this year, has a recurring role on "Glee." The 21-year-old singer has already announced plans for her 2014 Neon Lights Tour where she will be joined by a number of "X Factor" alums, from both the U.S. and U.K. versions of the series, including Fifth Harmony, Little Mix and Cher Lloyd.

But, she may have hinted at the reported exit earlier this season. "I think ultimately my main thing is singing," she told reporters last month, further noting that she also wanted to take some time off in January. "Maybe movies once in a while, if the right role comes along."

Cowell addressed the show's future earlier this week in an interview with Deadline. Cowell shared that the show will be back for season four, but noted that he "might have a different kind of role." During the interview with the site, he added that the show might only air one night a week next season instead of two and that it has "got to be more different next year than it was this year."