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Gwen Stefani and Christina Aguilera are feuding over their places on "The Voice", Radar Online reports. According to the site, the "What a Girl Wants" songstress demands a return to the singing contest and the producers are unable to keep Gwen and Blake Shelton's romance going on the air.

A production source reveals, "Christina said that it was her show and gave a really big spiel about how she thinks that Gwen used this Blake thing to try and stay on the show. Now people are dreading her return."

While Blake previously joked that the next season of "The Voice" would have five judges, the source claims the "Sangria" hitmaker isn't going to get his wish. "They have been switching the female judges on and off for over three seasons now and it has nothing to do with how well Gwen is performing [or what Aguilera wants]," the source shares, "It has more to do with just keeping it different by changing it up. As of right now, there are no plans to make it five judges."

Christina confirmed her return to "The Voice" season 10 as the judge along with Blake, Pharrell Williams and Adam Levine back in October. "The coaches on 'The Voice' continue to bring incredible energy, unrivaled musical expertise and a want-to-win attitude that makes for the perfect ingredients of a two-time Emmy-winning show," said Paul Telegdy, president of late night and alternative programming at NBC Entertainment. "We can't wait to see what season 10 will bring."