04/27/2012 04:05 pm ET Updated Apr 28, 2012

The Wanted: Christina Aguilera Is 'A Total B***h' (AUDIO)

The Wanted didn't mince words when it came to describing "The Voice" host Christina Aguilera. Tom Parker, a guitarist who failed to make it to the audition round on U.K.'s "The X Factor" and was a member of a Take That tribute band before joining The Wanted, called her "a total b---h" and said the judge "wouldn't even look at us."'

"She was quite rude," added member Siva Kaneswaran, in the interview with New York radio station Now FM. "Who does that?"

Meanwhile, the boys had nothing but nice things to say about "Idol" judge Jennifer Lopez. Before their stint on "The Voice," The Wanted performed on "American Idol." While rehearsing for their set, the band tweeted their admiration for the "Idol" judge ... multiple times.

It's clear to see that the boys were completely smitten with the "Dance Again" singer. Not so much with Aguilera. "Yeah, well J.Lo's hot, Christina's nothing special," said The Wanted's Max George.

This isn't the first time Aguilera has come under fire for her behavior. When Justin Bieber dropped by "The Voice" to introduce a teaser for his new "Boyfriend" video, Aguilera reportedly snubbed the teenage phenomenon when her approached her for a hug.

Aguilera responded to the accusations that she was being an uninterested diva, tweeting: "Haha! The media loves spinning stories... Can't a girl have a little #BieberFever after getting kissed by the Biebs?"

The pop star was also criticized for her harsh comments toward "Voice" hopeful Tony Lucca. Aguilera called Adam Levine's contestant “one-dimensional” and called him out for possibly using his celebrity contacts -- specifically their fellow former Mouseketeer Justin Timberlake -- to turn the NBC singing competition into a popularity contest.

From actors dissing reality stars, to name calling, to allegations of boyfriend stealing, to calling someone fat, here are the worst, most obnoxious and most ridiculous celebrity feuds:

Celebrity Feuds