Willie Nelson originally wrote the song in 1961 and Cline famously recorded it later that year, releasing the version that is probably best-known. Nelson stated Cline's version was his favorite version of a song of his recorded by someone else when he appeared in the documentary "Remembering Patsy."
"Cline's vocals, cut in one take, infused Nelson's lyrics with slow-burn sex appeal. "Crazy" set the stage for a sophisticated new phase of the C&W sound known as "countrypolitan," although Cline herself wouldn't be around to shape it," wrote of the song, ranking it number 85 in its Greatest Songs of All Time list.
