Lady Gaga

Associated Press
US performer Lady Gaga arrives at the Versace atelier in Milan, Italy, Moday, Oct. 1, 2012. Lady Gaga will stage the only Italian concert of her tour in Milan Tuesday. (AP Photo/Luca Bruno)

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Singer Lady Gaga, real name Stefani Germanotta, is busy promoting her upcoming fourth studio album "ARTPOP" and stirring up some trouble.  A political ally of Russian President Vladimir Putin is taking legal action against American pop star Lady Gaga for promoting gay rights to minors during a concert on Dec. 9.

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