'X Factor',' 'The Voice' Fued: Christina Aguilera Calls Simon Cowell The 'D' Word

The quest for the best hit singing competition show has heated up.

"The Voice" mentor Christina Aguilera called her talent show rival, "The X Factor USA" judge Simon Cowell a "d*ck."

Aguilera reportedly made the snide remark during her address at the Billboard/Hollywood Reporter Film & TV Conference on Thursday, Oct. 25.

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When asked if she has seen any of "The Voice" episodes as well as her rival shows, the "Lady Marmalade" singer admitted that she hadn't seen much but she did get a sneak peek at a clip of Cowell when he was on his former show "American Idol."

"I've not actually seen a full episode of any of the other music shows," Aguilera admitted. "I saw the commercials early on of 'American Idol' of Simon being a d*ck. I was like, 'Man, that's not what it's about!"

The "Beautiful" singer shared that her objective on the hit NBC show is to not be as mean-spirited to contestants.

"I didn't want to treat people like that. I wanted to do 'The Voice' to show that we can be positive. We don't have to knock people down." 

The 31-year-old admitted she doesn't get to watch her own show due to a grueling schedule that includes juggling motherhood and making music.

"I don't even watch my own show: I tape it, I'm out," she said. "Time to be mommy and time to work on my record and of course invest time in my team, picking songs. I juggle a lot."

The "Dirrty" singer was kind enough to give Cowell some credit for one of his great success stories. She noted the accolades of "Idol" alum Jennifer Hudson. "Jennifer Hudson came from American Idol and went on to do 'Dreamgirls' and won an Oscar."

Aguilera is not the only coach from 'The Voice" to admit what they think of Cowell.

Country crooner Blake Shelton has also weighed in on "The X Factor" show creator.

"Every time I turn around the guy is mouthing off," Shelton told "Access Hollywood." "Don't y'all wish you had time to bitch and moan like that? It's like, 'Do you own show! Come on! Put something together there and do you thing."

"We'll just do ours and we won't mouth off about you," he added. "I wish I had that much time. The guy must just have more free time than he knows what to do with."

The competition between the two singing talent shows became fierce when Fox aired the season 2 two-hour premiere of "The X Factor" at the same as "The Voice."

But the plan did not turn out as well as Fox would have liked.

"The X Factor" season 2 premiere averaged 8.5 million in total viewers, while "The Voice" pulled in 10.7 million. For "The X Factor" that's a 25 percent drop from last year's series premiere, according to The Hollywood Reporter. Fox did achieve some success that night, in the econd hour of "The X Factor," the show's viewers grew 40 percent.

"The Voice" airs on NBC Mondays at 8/7c and Tuesdays at 9/8c.

"The X Factor" returns on Fox Thursday at 8/7c on Nov.1 with the Live Shows featuring the Top 16 contestants.