Graceland ands Dr. Nick sound system Blueprint displayed at Rock Hall Annex

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Gotta Have It! Rock & Roll Pop Art Auction Press Preview

Jimi Hendrix's $1 performance contract. Muhammad Ali's training robe. Madonna's love letters and answering-machine messages. They're among nearly 500 personal celebrity items being auctioned. Gotta Have It!'s online auction ends Aug. 5.

Gotta Have It! Rock & Roll Pop Art Auction Press Preview - Image 27

Bill Porter's collection of the original blueprints for Graceland sound system and home of Elvis Presley' personal physician George Nichopoulos, "Dr. Nick" , is displayed at the Gotta Have It! Rock & Roll Pop Art Auction Press Preview at Rock & Roll Hall of Fame Annex NYC July 27, 2009 in New York City. (Photo by Astrid Stawiarz/Getty Images))