Lady Gaga In Pictures

Lady Gaga is notorious for extreme performances and outfits. Here, she lights her piano on fire while performing Nov. 22 at the American Music Awards in Los Angeles, Calif.  (Getty Images)
Lady Gaga is notorious for extreme performances and outfits. Here, she lights her piano on fire while performing Nov. 22 at the American Music Awards in Los Angeles, Calif. (Getty Images)

A slideshow of Lady Gaga's most provocative performance and fashion moments 2009.

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Lady Gaga performs May 19 in Brisbane, Australia.

Lady Gaga performs May 19 in Brisbane, Australia.

Many describe Lady Gaga's wadrobe as performance art rather than clothing. Here, she sports a lace dress and a mane-like collar at the launch of V61 on Sept. 14 in New York City.

Many describe Lady Gaga's wadrobe as performance art rather than clothing. Here, she sports a lace dress and a mane-like collar at the launch of V61 on Sept. 14 in New York City.

Lady Gaga attends the Ace awards on Nov. 2 in New York City.

Lady Gaga attends the Ace awards on Nov. 2 in New York City.

In a more conservative ensemble, Lady Gaga performs Oct. 10 during the 13th annual national dinner of the Human Rights Campaign in Washington, DC.

In a more conservative ensemble, Lady Gaga performs Oct. 10 during the 13th annual national dinner of the Human Rights Campaign in Washington, DC.

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