According to a much-told story, after the show the then-unknown Elvis told the group that, if he ever landed a major-label contract -- he was on Memphis' Sun Records at the time -- he'd have the Jordanaires back him up.
"As a longtime member of the vocal quartet the Jordanaires, he helped to influence the sound of gospel, country and pop music with a unique and versatile style while recording with an impressive roster of artists, " said the Recording Academy in a statement.