Elvis' Christmas Album chart; however, a pairing of "Blue Christmas" b/w "White Christmas" became a Top 20 UK hit in late 1964. "Santa Claus Is Back In Town"/"Blue Christmas" was a 1965 single release for the US market, and reached number 4 on the Billboard Christmas Singles chart. "Blue Christmas" would re-enter the Christmas or Holiday Singles chart many times in the years that follow. Two different EPs, "Elvis Sings Christmas Songs", EPA 4108 in December 1957, and "Christmas with Elvis", EPA 4340 in December 1958, divided the eight Christmas numbers between them. The former topped the newly established Billboard EP Chart, while
Elvis Presley At a press conference the following year, he proudly declared, "I know practically every religious song that's ever been written." Presley was a central figure in the development of rockabilly, according to music historians. "Rockabilly crystallized into a recognizable style in 1954 with Elvis Presley's first release, on the Sun label", writes Craig Morrison. Paul Friedlander describes the defining elements of rockabilly, which he similarly characterizes as "essentially ... an Elvis Presley construction": "the raw, emotive, and slurred vocal style and emphasis on rhythmic feeling [of] the blues with the string band and strummed rhythm guitar [of] country". In "That's