Glorious Song's 1980 performances included three consecutive Grade 1 wins and victories over some of the top male horses on the continent. As well, she ran second to future Hall of Fame inductee and Kentucky Derby/Preakness Stakes winner Spectacular Bid in the 1980 Haskell Invitational Handicap and earned another second against males in the Marlboro Cup. She was voted 1980 United States Champion Older Female Horse and Canadian Champion Older Female Horse, as well as the Canadian Horse of the Year title.