It's a Sin (Eddy Arnold song)

"It's a Sin" is a country song written by country guitarist Zeb Turner and music publisher Fred Rose. The 1947 version by Eddy Arnold was his second number one on the Country & Western charts, spending five weeks at number one and a total of thirty-eight weeks on the chart. The B-side of "It's a Sin", a song entitled, "I Couldn't Believe it Was True" would peak at number four on the same chart.

A cover by Marty Robbins peaked at number five on the Billboard Hot Country Singles chart in 1969.

It has also been recorded by Bill Haley & His Comets (1957), Elvis Presley (1961), Don Gibson (1962), George Jones (1965), Dottie West (1969), Del Wood (1980), and Willie Nelson (1995).