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GUITAR HEROES
David Cook reunites with fellow American Idol alums Ruben Studdard and Melinda Doolittle (not pictured) Tuesday night to perform at the Ronald McDonald House benefit in New York.
More from PEOPLE
David Cook reunites with fellow American Idol alums Ruben Studdard and Melinda Doolittle (not pictured) Tuesday night to perform at the Ronald McDonald House benefit in New York.
