1978: ‘Mammas Don’t Let Your Babies Grow Up to Be Cowboys’ by Waylon Jennings and Willie Nelson


Number of weeks spent as #1: 4

Waylon and Willie teamed up again in 1978 for an album of duets called “Waylon & Willie,” which featured the song “Mammas Don’t Let Your Babies Grow Up to Be Cowboys.” An example of the emerging “outlaw country” sub-genre, “Mammas” was originally recorded two years earlier by Ed Bruce on a version that peaked at #15 on the Hot Country charts. It was also covered by The Chipmunks.

You may also like: 100 best John Wayne movies