Adam Levine sticks up for Christina Aguilera: Her weight is 'no one's business'

If you follow social media coverage of "The Voice," a significant amount of commenters remark not on the quality of the music, but on the state of Christina Aguilera's body. Her weight has certainly fluctuated over the years, and has incited plenty of media scrutiny. Now, her fellow "Voice" coach Adam Levine is jumping to her defense.

They may occasionally butt heads on screen, but at a recent Q&A in NYC, Levine had her back. "People shouldn't say those kinds of things because, f--k you. It's like, come on guys, grow up," he said when asked about people's obsession with Aguilera's curves.

"The one thing about the culture right now--celebrity culture particularly--that is so ugly is [that] people feel like they can just say nasty things about other people...she gets a lot of it," he continues. "It pisses me off. Of course I have her back, of course I defend her."

He also assures fans that their apparent problems over Tony Lucca last year are behind them -- and were never such a big deal in the first place. "The fights that everyone thought we were having were fictional--we never hated each other, we never were having some sort of secret battles that everyone thought we were having," he says. "They were silly bickering things that brother and sister would do. It's not nearly what everybody thought... We're all good, Christina and I."