Question: who sang the song should have been a cowboy
[{'answer': 'Toby Keith'}, {'answer': 'American country music artist Toby Keith'}, {}, {'provenance': [{'wikipedia_id': '11795344', 'title': 'Toby Keith (album)', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['Toby Keith (known as Shouldve Been a Cowboy on the 2018 re-release) is the debut studio album from American country music artist Toby Keith.', 'Toby Keith (known as Shouldve Been a Cowboy on the 2018 re-release) is the debut studio album from American country music artist Toby Keith. Released in 1993 on Polygram Records, it features the singles "Should\'ve Been a Cowboy", "He Ain\'t Worth Missing", "A Little Less Talk and a Lot More Action", and "Wish I Didn\'t Know Now". Respectively, these songs peaked at No. 1, No. 5, No. 2, and No. 2 on the Hot Country Songs charts. The album sold more than one million copies in the United States, earning RIAA platinum certification.', 'Toby Keith (known as Shouldve Been a Cowboy on the 2018 re-release) is the debut studio album from American country music artist Toby Keith. Released in 1993 on Polygram Records, it features the singles "Should\'ve Been a Cowboy", "He Ain\'t Worth Missing", "A Little Less Talk and a Lot More Action", and "Wish I Didn\'t Know Now".']}}]}, {'provenance': [{'wikipedia_id': '682527', 'title': 'Toby Keith', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['These albums all earned Gold or higher certification, and produced several Top Ten singles, including his debut "Should\'ve Been a Cowboy",', 'Toby Keith Covel (born July 8, 1961) is an American country singer, songwriter, actor, and record producer. Keith released his first four studio albums1993\'s "Toby Keith", 1994\'s "Boomtown", 1996\'s "Blue Moon" and 1997\'s "Dream Walkin\'", plus a Greatest Hits package for various divisions of Mercury Records before leaving Mercury in 1998. These albums all earned Gold or higher certification, and produced several Top Ten singles, including his debut "Should\'ve Been a Cowboy", which topped the country charts and was the most-played country song of the 1990s. The song has received three million spins since its release, according to Broadcast Music Incorporated.', 'These albums all earned Gold or higher certification, and produced several Top Ten singles, including his debut "Should\'ve Been a Cowboy", which topped the country charts and was the most-played country song of the 1990s. The song has received three million spins since its release, according to Broadcast Music Incorporated.\rhighlight sentence(s) containing evidence, not only the answer']}}]}]