After two sessions of the Magic Millions Yearling Sale, American Pharoah is the leading first season sire with three or more yearlings sold with 12 youngsters averaging $343,333.
His popularity continued with a colt from Group III winning Fastnet Rock mare Jazz Song fetching $750,000 for Coolmore when bought by Waller Racing/Mulcaster Bloodstock.
Bred by Morning Rise Stud, he is the third foal from Jazz Song, a daughter of Group I winner Absolut Glam.
Jazz Song has another American Pharoah colt to follow and was covered last spring by another Triple Crown hero in Justify.