 
 <translate> The relevant sentence in the passage is: "Mammas Do n't Let Your Babies Grow Up to Be Cowboys" is a country music song first recorded by Ed Bruce, written by him and wife Patsy Bruce. The answer is Ed Bruce. <ibo> Nkebi ahịrịokwu dị mkpa na amaokwu ahụ bụ: "Mammas Ekwela ka ụmụ gị too ka ha bụrụ Cowboys" bụ abụ egwu mba nke Ed Bruce dere, nke ya na nwunye ya Patsy Bruce dere. Azịza ya bụ Ed Bruce. 