10. His First Wife Was a Songwriter, Too

Sandy Mahl -- who was married to Garth Brooks from 1986-2000 -- is a credited writer on 'I've Got a Good Thing Going' from Brooks' self-titled debut album, as well as his 1993 hit 'That Summer.' In fact, she gave him some good advice when he'd come to a standstill with the latter song, turning the main character into a much more sympathetic soul, not just a lost woman. Perhaps her greatest creation was their three daughters, however.