Britney Spears makes exit from 'X Factor'

Britney Spears is saying "so long" to her judging gig on "The X Factor" - and it's on her own terms.

Sources confirmed to TMZ.com that the singer is leaving the Fox competition show after only one season so that she can focus on her music career.

According to the site, Spears is currently in the studio working on her eighth album.

"Her thing is music," a source told the website.