Christina Aguilera 2011 Weight Gain

Christina Aguilera Weight Gain: Fat or Unflattering 'Super Skimpy Outfit'?

Christina Aguilera's weight gain is the only thing fans noticed after her amazing performance at the Michael Jackson Tribute concert Saturday, Oct. 8.

The 30-year-old pop singer performed "Dirty Diana" and "Smile" at the event, called "Michael Forever." Her act was met with rave reviews, but her "super skimpy outfit," which some felt made her look fat, was what got press tongues wagging.

The singer's weight has fluctuated over her years as a pop icon, and after her divorce from music producer Jordan Bratman in October 2010, she has been sporting a noticeably fuller figure. Over the last few months, Aguilera slimmed down again, earning nods for the weight loss.

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