Written and first recorded by Bill Mack (1956, released 1958).
Also recorded by Kenny Roberts (1966)
Hit version by LeAnn Rimes (US #26/C&W #10 1996).
From the wiki: “‘Blue’ was written and recorded in 1956 by Bill Mack but not released until 1958. Since then, it has been covered by several artists, most popularly by Country singer LeAnn Rimes in 1996. Her recording won Rimes and Mack the 1996 Grammy Award for Best Country Song, a 1996 Academy of Country Music Award for Song of the Year, a 1997 Country Music Association Awards nomination for Song of the Year, and a 1997 Country Radio Music Awards nomination for Song of the Year. ‘Blue’ is also included on the CMT list of the Top 100 Country Songs of All Time.
“In his autobiography, and contrary to popular opinion, Mack debunks the publicity claim that he had written the song specifically for Patsy Cline. According to a self-penned article for Truckers Connection, Mack revealed that his ‘most noteworthy inspirations had been a billboard and attempting to create note changes on a new guitar.’