Unbridled's Song (February 18, 1993 – July 26, 2013) was an American thoroughbred racehorse who won the Breeders' Cup Juvenile, Florida Derby and Wood Memorial.
He subsequently became a highly successful sire, with major winners including Breeders' Cup champions Arrogate, Forever Unbridled, Midshipman and Liam's Map.
[3] Unbridled's Song was sold as a yearling in 1994 for $200,000 to Ernie Paragallo who then "pinhooked" the horse as a two-year-old in training for a world record $1.4 million.
However, the high bidder returned the colt after his veterinarian detected a bone chip, a claim disputed by Paragallo.
Other graded stakes winners include Will Take Charge, Octave, Splendid Blended, Domestic Dispute, Grey Song, Alexander, Political Force, Eurosilver, Eight Belles, Old Fashioned, Cross Traffic, Buddha and Songandaprayer.
An important sire milestone came on February 10, 2013 when his son Graydar won the Grade 1 Donn Handicap, his 100th stakes winner.
He died on July 26, 2013, aged 20, after a large and inoperable mass was discovered in his sinus cavities and around the optic nerves.