Mammas Don't Let Your Babies Grow Up to Be Cowboys
A very popular cover by Waylon Jennings and Willie Nelson was released in January 1978. It appeared on their 1978 duet album Waylon & Willie. Jennings and Nelson's version able to make it to #1 on the Hot Country Singles chart and #42 on the Billboard Hot 100. Their version won Best Country Performance by a Duo or Group with Vocal at the 1979 Grammy Award.