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 and her dancers, dressed as circus performers, staged a high-impact, intricately choreographed routine as she sang her No. 1 single, "Womanizer" and the title track from her "Circus" album. The concert extravaganza included jugglers, clowns, pyrotechnics, popcorn and cotton candy. (Jessica DiPietro/ABC)
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