Britney Spears Celebrates 27th Birthday on Good Morning America

Britney Spears celebrated her 27th birthday Tuesday under the Big Top with a performance on Good Morning America.

Dressed as a ringmaster, Spears made her entrance atop a circus wagon – accompanied by clowns, jugglers and performers dressed as circus animals. For her second number, “Womanizer,” Spears smashed through a fiery hoop, according to reports.

And good news.  Britney kicks off her concert tour in New Orleans on March 3rd!

Today also marks the release of her album Circus and follows a records rating success for her MTV documentary.