Singing

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Singer-songwriter Billy Joel speaks at a news conference at Madison Square Garden in New York on Tuesday, Dec. 3, 2013, at which he announced he will perform a residency at the famed arena once a month for as many months as New Yorkers demand. (AP Photo/Mark Lennihan)

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Singer-actress Cher answers questions from the media in Miami, in this Jan. 29, 1999, file photo. (AP Photo/Tony Gutierrez, File) ** FILE **

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** FILE ** Singer-actress Jennifer Lopez performs at the JW Marriott Desert Ridge Resort and Spa in Phoenix on Saturday, March 23, 2013. (Rick Scuteri/Invision/AP)

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Singer-actress Barbra Streisand (left) and New York Mayor Michael R. Bloomberg attend the White House Correspondents' Association Dinner at the Washington Hilton Hotel on Saturday, April 27, 2013, in Washington. (AP Photo/Carolyn Kaster)

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Singer-songwriter Crystal Bowersox is pictured at the Fender Music Lodge during the Sundance Film Festival in Park City, Utah, on Monday, Jan. 21, 2013. (AP Photo/Fender, Jack Dempsey)