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, and he developed a drug dependence and died in 1977 at age 42. What theories do some fans cite in their claims that Elvis did not really die in 1977? Discuss