Elvis Presley, now known to millions as "The King of Rock 'n' Roll," became a national sensation in 1956 and dominated the world of rock music until 1963. His most successful songs include "Heartbreak Hotel," "Love Me Tender," and "Don't Be Cruel." His success spawned a spate of B-movie appearances, but his popularity waned in the late 60s after the "British Invasion." What facts do some fans cite in their claims that Elvis did not really die in 1977? ...