Russell Brand took charge of MSNBC show Morning Joe when the anchors weren't up to scratch.
Adam Levine says 'Lay off Aguilera'
Adam Levine is standing up for Christina Aguilera
Adam Levine has said Christina Aguilera's body critics need to "grow up".
Christina's curves have been the subject of recent headlines but Adam, her fellow coach on the US version of The Voice, said the scrutiny of her weight was unfair.
He told E! News: "The one thing about the culture right now, celebrity culture particularly, is people feel like they can just say nasty things about other people, whether it's Christina or whether it's me.
"She gets a lot and it p***es me off. Of course I have her back and of course I defend her."
He added: "People shouldn't say those kinds of things... It's like, come on guys, grow up."
The Maroon 5 frontman also insisted rumours of a spat between him and the Genie In A Bottle singer were untrue.
"The fights that everyone thought we were having were fictional," he revealed. "We never hated each other."
related stories on msn
latest tv videos
MSN TV talks via Skype to fired Apprentice candidate Jason Leech to find out what went wrong and how he (partially) led his team to disaster. The Apprentice airs Wednesdays on BBC1 at 9pm.
Date 4 hrs ago, Duration 5:49, Views 1808