Britney Spears' "Circus" Comes to Town

Britney Spears celebrated her birthday with a pair of performances on "GMA."

PHOTOS: Britney Spears' 'Circus' Comes to Town

Britney Spears
Britney Spears
Britney Spears
Britney Spears
Britney Spears
Britney Spears
Britney Spears
Britney Spears
Britney Spears
Britney Spears
Britney Spears
Britney Spears
Britney Spears
Spears told Glamour magazine that the song "Womanizer" is a "really empowering song. There are so many guys who take advantage of girls and play girls all the time. The song is basically saying that we've got your number — we know what you're up to." As for the album "Circus," she told the magazine, "It's really personal, and I think people will feel that when they hear it. It's me talking to them, instead of just singing a song about something." (Ida Mae Astute/ABC)
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