"Twenty Flight Rock" is a song originally performed by Eddie Cochran in the 1956 film comedy The Girl Can't Help It, and released as a single the following year.

The song was published in 1957 as written by Ned Fairchild and Eddie Cochran, by American Music Incorporated and Campbell, Connelly and Company.

The first version of "Twenty Flight Rock" was recorded by Cochran in July 1956 at Gold Star Studios, with Connie Smith on the bull fiddle and Jerry Capehart thumping a soup carton.

The final verse ends on a surprisingly morbid note compared to other pop songs of the time: "All this climbin' is a-gettin' me down.

The barely 15-year-old Paul McCartney used "Twenty Flight Rock" as his first song when he auditioned for John Lennon on July 6, 1957, in Liverpool, England.