Britney Spears quits X Factor and fiance

Britney Spears has given her notice to both her day job and her boyfriend.

According to TVGuide.com, Britney will not be returning to THE X FACTOR, having served as judge for just one season.

"I've made the very difficult decision not to return for another season," she said in a statement Friday. "I had an incredible time doing the show and I love the other judges and I am so proud of my teens but it's time for me to get back in the studio. Watching them all do their thing up on that stage every week made me miss performing so much!  I can't wait to get back out there and do what I love most."

Sources previously told TVGuide.com that she did so because she knew she was going to be fired.

Spears was paid $15 million to appear as a judge on the show. Word is the singer is currently recording her eighth album, and may be in talks to headline her own show in Las Vegas.

"She is very interested in a Vegas residency, and is in serious talks with one of the major casino groups," a source close to Spears told TVGuide.com Friday.

On the personal side of her life, Britney and fiance Jason Trawick have called it quits.

"Britney Spears and Jason Trawick have mutually agreed to end their one-year engagement," her rep Jeff Raymond tells PEOPLE. "As two mature adults, they came to the difficult decision to go their separate ways while continuing to remain friends."