bspearsEXCL121212_01_X17crop230.jpgBritney Spears will be looking for a new gig after this season of X Factor because she's getting the boot, according to Us.

The "Toxic" singer scored $15 million for one year as a mentor, however a source tells the mag that her low-energy demeanor and "half-claps" weren't worth the money.

A source adds: "Producers wanted her for the long haul, but it isn't working. They paid all that for her to say 'amazing' and offer half-claps."

Another source says show co-creator Simon Cowell "wanted crazy Britney, but he got boring Britney."

Fellow X Factor mentor L.A. Reid has already announced he will not be returning next season. In the past two seasons alone, numerous mentors have been fired including Paula Abdul, Cheryl Cole and Nicole Scherzinger.

X Factor wrapped its second season on December 20.