The rare horse who made headlines in the sales ring, on the track, and as a stallion, Unbridled’s Song died July 26 at Rood & Riddle Equine Hospital, in Lexington, Ky.

The 20-year-old stallion was euthanized after a rapid decline in his health as a result of a large mass present in multiple sinus cavities and around the optic nerves. He began exhibiting acute neurologic signs of the morning of July 25 and was transported to Rood & Riddle. Based on the results of an MRI, veterinarians determined the mass was invasive and aggressive in nature and deemed it inoperable.

Unbridled’s Song had completed his 17th season at Taylor Made Stallions in Nicholasville, Ky., where he stood for $60,000.

"Unbridled’s Song was majestic from the beginning," said Taylor Made president Duncan Taylor. "Rarely are there horses that are supposed to be great from the beginning and actually are. Unbridled’s Song was one of those great horses. He had it all—looks, pedigree, speed, and presence