
SOLVED!
Actually, it IS Christina Aguilera! Source: RadarOnline
Radar has fired the opening salvo in what is bound to be a lengthy discussion of Aguilera’s sexual orientation. Christina has a long, long list of mistresses, many of whom will likely be coming out of the TigerWoodwork now that she’s filed for divorce from her husband.

Thanks to Sleuth for the link to one of the articles about Christina! We decided to go with RadarOnline as the primary source since they were first with the story.