Man, "The Voice" sounds like such a pleasant place to work. While Adam Levine and Pharrell Williams are busy feuding with each other, fellow judge Christina Aguilera has been busy driving the production staff crazy. "She just has ridiculous demands since coming back as a judge," a source tells Radar Online. "Everyone is wishing she did not return." Wow, everyone? Even the guy who oils the big turn-y chairs? 

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But there might be a thread to all these stories of strife that suggests it's not entirely Aguilera's diva-dom that's to blame. "Christina is such a terror to work with. She is frequently late and she doesn't even seem to care or apologize for holding up the filming of the show," the source explains. "To make matters worse, she is constantly fighting with Adam. They cannot stand each other." You know, I'm no expert, but I'm starting to see a common element in all these "Voice" backstage strife stories, and it rhymes with Shmadam Shmevine . 

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