Willie Nelson & Waylon Jennings - Mammas Don't Let Your Babies Grow Up to Be Cowboys (Backing track) ID: RE10259 All files available for download are covers, they are not by the original artist. Your browser does not support the audio tag. New songs alert Technical Info Key:D/E Length:2:33 Tempo:95.9 bpm Ending:Proper Ending Bitrate:256 kB/s Samplerate:44 100 Hz File Size:4.66 MB File Format:MPEG 1 Layer 3 (Stereo) Type:Backing Track Style: Country, Duets, 1970s €4.84 BUY With Backing Vocals BUY Without Backing Vocals BUY With Lead vocal (to learn the song)