[6] She was sold for $30,000 as a broodmare or racing prospect at the 2009 Keeneland November breeding stock sale[4] to Haras Firmamento, who had her bred to Candy Ride on southern hemisphere time before importing her and her in utero foal in June, 2011.
Quiz Kid, winner of the previous year's Group 1 Carreras de las Estrellas Classic, led for the first 2200 meters of the 2400-meter race before tiring and falling back.
[3] For his next race, Sixties Song left Argentina for the first time, heading to Valparaiso Sporting Club in Chile for the Group 1 Gran Premio Latinoamericano, run over a distance of 2400 meters on the dirt that year.
[3][15] On the day of the race, Sixties Song got caught up in a stall, scraping against the wall and receiving a minor injury.
[18] Before heading out to Great Britain for a try at Ascot, Sixties Song raced once more as a three-year-old in Argentina, in the Group 1 Gran Premio 25 de Mayo, run on May 25, 2017.
Sixties Song started as the favorite and led for the first 11⁄4 miles of the 2400-meter race at Hipódromo de San Isidro.
[20] Sixties Song trained in a right-handed direction during early morning exercise at Hipódromo Argentino de Palermo in preparation.
[14] By July 28, 2017, Gérald Mossé had been decided upon as Sixties Song's rider for the King George VI and Queen Elizabeth Stakes, with early odds of 66–1.
[22] Returning from Great Britain, Sixties Song suffered various health complications due to the stress, including ulcers, kidney problems, and an enlarged spleen.
[24] Sixties Song was one of the three leading horses for most of the race, but he ceased to be a factor by the time the field entered the homestretch, finishing sixth.
[25] To close out the year and his four-year-old season, Sixties Song contested his second Gran Premio Carlos Pellegrini.
Going into the race Puerto Escondido, who had finished second behind Sixties Song the previous year, was considered to be his main rival.
[29] On September 1, Sixties Song ran in the Group 1 Gran Premio General San Martín, also a 2400-meter turf race at Hipódromo Argentino de Palermo.
[30] To address his enlarged spleen that had developed since the King George, Sixties Song was given a change of diet and treatments.
Sixties Song stalked the pace for much of the race, and in the stretch again showed his ability, going on to win comfortably by two lengths.
[3] Sixties Song's final race was the Gran Premio Latinoamericano, run in 2019 at Club Hípico de Santiago over 2400 meters on a turf course.