Cover of MY HAPPINESS in 1953 - cut for $4 in June the first time he recorded at Sam Phillips' Memphis Recording Service; unique acetate, owned by a friend and auctioned in 2015 by his heirs for $300.000; reissued on The Complete 50's Masters box set
Cover of THAT'S WHEN YOUR HEARTACHES BEGIN in 1953 - first time he walked in at Sam Phillips' place to hear how his voice would sound; B-side of this unique walk-in facility single: My Happiness, another old Ink Spots hit; both sides reissued on the Complete 50's Masters box set; he cut it again in '57 for RCA
Cover of GOOD ROCKING TONIGHT in 1954 - following Roy Brown's original, rather than Wynonie Harris' hit version; first one to sing "Have YOU heard the news" instead of "I heard the news, there's good rockin' tonight"
Cover of WHEN IT RAINS IT POURS in 1955 - as When It Rains It Really Pours for Sun, finally released in '65 with overdubbed instruments on RCA lp Elvis For Everyone; his original version was later heard on Elvis: A Legendary Performer Vol.4
Cover of ARE YOU LONESOME TO-NIGHT in 1969 - the famous "laughing version"; triggered by his own wit, pills and a slightly out of key backing vocalist; inspired by the gentleman right in front of him at his International Hotel dinner table, El sang: "Do you gaze at your bald head and wish you had hair" instead of the standard "Do you gaze at your doorstep and picture me there"