Waylon Jennings & Willie Nelson released "Mammas Don't Let Your Babies Grow Up To Be Cowboys" in 1978 as part of their duet album "Waylon & Willie." It spent four weeks at #1 on the country music charts, and also won them a Grammy Award for Best Country Performance by a Duo or Group. Watch Travis Tritt perform it! | Country Rebel

'Mammas Don't Let Your Babies Grow Up to Be Cowboys' Waylon Jennings & Willie Nelson tribute by Francelle