Lady Gaga on the MTV red carpet

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Lady Gaga walks the red carpet at the 2009 MTV Video Music Awards at Radio City Music Hall on September 13, 2009.
Lady Gaga's MTV performance

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Lady Gaga performs her song "Paparazzi" at the 2009 MTV Video Music Awards in September 2009.
Lady Gaga's VMA outfit

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After her performance, Lady Gaga changed costumes at the MTV Video Music Awards. "That's Alexander McQueen, and I added the hat to it. It's the oldest archive in the McQueen Collection," she says. "It was meant to be a continuation of the VMA performance. So after ... the princess had been murdered by the paparazzi, the red lace was meant to symbolize sort of my eternal martyrdom."
Lady Gaga's VMA after-party outfit

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After the VMAs, Lady Gaga heads to an after-party.
Lady Gaga's Kermit outfit

 

Lady Gaga goes green for a German television show. "That's the Jean de Castelbajac outfit," she says. "I don't like to wear fur, so it was my way of making a comment about fur because it looks like a bunch of dead Muppets."
Lady Gaga's press conference outfit

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On September 30, 2009, Lady Gaga poses for pictures at a press conference announcing her headphones, Heartbeats by Lady Gaga.
Lady Gaga's AMAs outfit

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Lady Gaga performs at the 2009 American Music Awards on November 22, 2009.
Lady Gaga's Queen Elizabeth outfit

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On December 7, 2009, Lady Gaga met Queen Elizabeth. "I kind of wanted to do an homage to the queen, so that was my Queen Elizabeth I outfit," she says. "But it's made out of latex, so it's still Gaga."
Lady Gaga's concert outfit

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Lady Gaga performs at the Nokia Theater in Los Angeles on December 23, 2009.

Lady Gaga's interview with Oprah
Lady Gaga at Lollapalooza

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The "Just Dance" singer reigns in purple during Lollapalooza at Grant Park in Chicago, Illinois.
Lady Gaga at Thierry Mugler's Paris Fashion Week show

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Lady Gaga's fashion prowess is undeniable as she walks the runway during Thierry Mugler's Paris Fashion Week show.
Lady Gaga emerges from an egg

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She's been known to push the envelope—or in this case, the shell. Lady Gaga "hatches" from an egg during her performance at the 53rd annual Grammy Awards where she debuted her single, "Born This Way."
Lady Gaga during the last "Harpo Hookups" show

Photo: George Burns/Harpo Studios

There wasn't a hair was out of place when Lady Gaga surprised The Oprah Show's audience during our last Harpo Hookups show. While playing a piano that was built into a massive shoe sculpture, Lady Gaga performed "You and I" and "Born This Way."