Lady Gaga at Z100 Studio with fan

Lady Gaga at Z100 Studio with fan

'Gaga Live' concert in Sydney's Town Hall

Singer Lady Gaga performs in a wheelchair during the "Gaga Live" concert in Sydney's Town Hall, July 13, 2011.

Lady Gaga at Sydney Airport

U.S. singer Lady Gaga waves as she walks across the tarmac after arriving by private jet at Sydney Airport July 9, 2011.

Lady Gaga poses for photographers in Taipei

MuchMusic Video Awards in Toronto

Lady Gaga poses backstage at the MuchMusic Video Awards in Toronto June 19, 2011.

Lady Gaga performs in downtown Rome

U.S. singer Lady Gaga performs during a gay pride concert in downtown Rome June 11, 2011.

Gaga performs at season finale of 'Germany's next top model'

Lady Gaga performed at the final of the TV show "Germany's next top model by Heidi Klum" in Cologne June 9, 2011. Jana Beller was named as the winner.

CFDA Fashion awards in New York City

Stars pose on the red carpet at the CFDA Fashion awards at the Lincoln Center's Alice Tully Hall in New York City June 6, 2011.

Lady Gaga attends album signing event for new release 'Born This Way' in NY City

Singer Lady Gaga arrives at an album signing event for her new release "Born This Way" at Best Buy in New York City May 23, 2011.

Lady Gaga performs her new song 'Government Hooker' at Paris Fashion Week

Lady Gaga performs her new song "Government Hooker" during the Thierry Mugler Fall-Winter 2011/2012 women's ready-to-wear fashion collection by designer Nicola Formichetti during Paris Fashion Week March 2, 2011.

Singers perform at the 53rd annual Grammy Awards in L.A.

Eminem performs "I Need A Doctor" at the 53rd annual Grammy Awards in Los Angeles, California February 13, 2011.

Lady Gaga introduces her Grey Label products during the 2011 CES

Entertainer Lady Gaga smiles while introducing her Grey Label product line during the 2011 International Consumer Electronics Show (CES) in Las Vegas, Nevada January 6, 2011.