Whose Side Are You On? Christina Aguilera vs. ...

From The Wanted to Kelly Osbourne, see who's hit a sour note with the singer

TONY LUCCA

When the onetime Mouseketeer landed on The Voice, he thought he would find an ally in his fellow alum, but instead Aguilera consistently criticized Lucca, even calling him "one-dimensional." "I have had conversations with old friends [from The Mickey Mouse Club] and I'll ask, 'Is there something I missed?'" Lucca told PEOPLE. Since the show's conclusion, Lucca revealed Aguilera cleared the air between them, and he hopes they can move forward.



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