Christina Aguilera shows off slim figure at "Voice" event

Christina Aguilera, who will return to "The Voice" after a year-long hiatus, looked slimmer than ever at an NBC event promoting the show on Saturday in Beverly Hills. The 32-year-old singer sported long, platinum-blonde locks and a short pink dress at the Television Critics Association presser, in which all four coaches discussed their hopes for this season.

Asked what she did with her time off, the diminutive singer said she was happy to spend time with her son away from the cameras.

I cannot live in front of the camera 24 hours a day. I have to take breaks and stay connected with myself, I think that's important so that you can be your best on camera. I'm a mom, when the cameras go off I put on sweats and a t-shirt and I'm mom. He starts kindergarten in the fall so I'm excited about that ... I wanted, for myself, have a moment ... I've been on a really incredible journey the past six months, I feel revived and renewed.

Aguilera has also looked skinnier in Twitter photos from the set of the singing competition's fifth season, set to premiere September 23.

Multi tasking back on the set of #TheVoice! pic.twitter.com/hImtSqDj3E

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— Christina Aguilera (@xtina) July 13, 2013

Rollin' into season 5- ready to kick it with the boys. pic.twitter.com/Lg0smETAG8

— Christina Aguilera (@xtina) July 13, 2013

So much has been made of Aguilera's changing figure, that "Voice" co-coach Adam Levine came to her defense last October.

"The one thing about 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," he said at a New York Q&A. "She gets a lot and it pisses me off. Of course I have her back and of course I defend her."