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UNSPECIFIED - JANUARY 01: Photo of Elvis PRESLEY; Posed studio portrait of Elvis Presley (Photo by RB/Redferns)

UNSPECIFIED - JANUARY 01:  Photo of Elvis PRESLEY; Posed studio portrait of Elvis Presley  (Photo by RB/Redferns)

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Portrait of American singer and actor Elvis Presley (1935 - 1977) holding a 1965 Gibson EBS-1250 Double Bass (a combined 6-string and bass guitar), circa 1966. Elvis is seen playing the guitar in his 1966 film, 'Spinout'. (Photo by Hulton Archive/Getty Images)

Portrait of American singer and actor Elvis Presley (1935 - 1977) holding a 1965 Gibson EBS-1250 Double Bass (a combined 6-string and bass guitar), circa 1966. Elvis is seen playing the guitar in his 1966 film, 'Spinout'. (Photo by Hulton Archive/Getty Images)

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Elvis Presley (1935 - 1977) being fed a mouthful of wedding cake by his bride Priscilla Beaulieu at the Aladdin Hotel, Las Vegas. (Photo by Keystone/Getty Images)

Elvis Presley (1935 - 1977) being fed a mouthful of wedding cake by his bride Priscilla Beaulieu at the Aladdin Hotel, Las Vegas.   (Photo by Keystone/Getty Images)

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380450 02: President Richard Nixon meets with Elvis Presley December 21, 1970 at the White House. (Photo by National Archive/Newsmakers)

380450 02: President Richard Nixon meets with Elvis Presley December 21, 1970 at the White House. (Photo by National Archive/Newsmakers)

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American singer Elvis Presley (1935 - 1977) performing in the 'Aloha from Hawaii Via Satellite', televised concert at the Honolulu International Center, Hawaii, 14th January 1973. (Photo by Fotos International/Archive Photos/Getty Images)

American singer Elvis Presley (1935 - 1977) performing in the 'Aloha from Hawaii Via Satellite', televised concert at the Honolulu International Center, Hawaii, 14th January 1973. (Photo by Fotos International/Archive Photos/Getty Images)