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UNITED STATES - JUNE 27: June 27, 1968, California, Burbank, Elvis Presley performing on the Elvis comeback TV special. (Photo by Michael Ochs Archives/Getty Images)

UNITED STATES - JUNE 27:  June 27, 1968, California, Burbank, Elvis Presley performing on the Elvis comeback TV special.  (Photo by Michael Ochs Archives/Getty Images)

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BURBANK, CA - JUNE 27: Rock and roll musician Elvis Presley performing on the Elvis comeback TV special on June 27, 1968. (Photo by Michael Ochs Archives/Getty Images)

BURBANK, CA - JUNE 27: Rock and roll musician Elvis Presley performing on the Elvis comeback TV special on June 27, 1968. (Photo by Michael Ochs Archives/Getty Images)

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BURBANK, CA - JUNE 27: Rock and roll musician Elvis Presley performing on the Elvis comeback TV special on June 27, 1968 in Burbank, California. (Photo by Michael Ochs Archives/Getty Images)

BURBANK, CA - JUNE 27: Rock and roll musician Elvis Presley performing on the Elvis comeback TV special on June 27, 1968 in Burbank, California. (Photo by Michael Ochs Archives/Getty Images)

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BURBANK, CA - JUNE 27: Rock and roll musician Elvis Presley performing on the Elvis comeback TV special on June 27, 1968. (Photo by Michael Ochs Archives/Getty Images)

BURBANK, CA - JUNE 27: Rock and roll musician Elvis Presley performing on the Elvis comeback TV special on June 27, 1968. (Photo by Michael Ochs Archives/Getty Images)

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BURBANK, CA - JUNE 27: Rock and roll musician Elvis Presley performing on the Elvis comeback TV special on June 27, 1968. (Photo by Michael Ochs Archives/Getty Images)

BURBANK, CA - JUNE 27:  Rock and roll musician Elvis Presley performing on the Elvis comeback TV special on June 27, 1968. (Photo by Michael Ochs Archives/Getty Images)