The 4-year-old runner was the 100th stakes winner for the Kentucky sire, who stands at Taylor Made Stallions near Nicholasville, Ky.
"Unbridled's Song has been such a great sire, and our entire team at Taylor Made could not be more proud of him for accomplishing such a landmark of 100 stakes winners for a sire," said Ben Taylor, vice president of Taylor Made Stallions. "I want to thank all of the breeders, owners, trainers, and all other horsemen who have shared a hand in Unbridled's Song's success."
Unbridled's Song has sired 15 grade I stakes winners, and at least one grade I winner for the past 11 years. His offspring include Breeders' Cup Distaff (gr. I) winner Unbridled Elaine, Breeders' Cup Ladies' Classic winner Unrivaled Belle, Grey Goose Breeders' Cup Juvenile (gr. I) winner Midshipman , three-time grade I winner Zensational, Mother Goose Stakes (gr. I) winner Octave, and Suburban Handicap (gr. I) winner Political Force.
He is the sire of nine millionaires, including Twin Creek Racing's Mission Impazible , who finished second in the Donn in 2012.
Unbridled's Song is a grade I-winning son of Unbridled out of the Caro mare Trolley Song.