Complex sentence: "I Want to be a Cowboy's Sweetheart" is a country and Western song written and first recorded in 1935 by Rubye Blevins, who performed as Patsy Montana.
Split into simpler sentences: I Want to be a Cowboy's Sweetheart is a Country-and-Western song. Written and first recorded in 1935 by Rubye Blevins, a lady who performed as Patsy Montana.