NEW YORK (AP) - Lady Gaga's childhood piano is going on the auction block in New York City next month where it could fetch as much as $200,000.
    
Julien's Auctions is offering the piano in its "Music Icons" memorabilia sale at the Hard Rock Cafe New York on May 21.
    
The upright piano was featured in a 2011-2012 "Women Who Rock" exhibition at the Rock and Roll Hall of Fame and Museum in Cleveland.
    
It was purchased by Gaga's grandparents for $780 in 1966 and later given to her parents. She began taking piano lessons when she was 4, and wrote her first composition, "Dollar Bills," a year later.
    
A portion of the proceeds will benefit the singer's Born This Way Foundation, launched in 2012 to empower youth.