The song "1-2-3" from the Original Broadway Cast of On Your Feet is about a woman named Gloria who is trying to win over the love of a shy and hesitant man. She is determined to get him to open up and express his love for her. The song is upbeat and lively, with Gloria and her background singers and dancers encouraging the man to come out of his shell and give her his love. The lyrics express Gloria's determination to win the man's love, as she counts up to eleven, indicating that she will keep trying until he finally gives in. The song is filled with excitement and energy as Gloria and her company cheer and chant for the man to give in to her love. Overall, "1-2-3" tells the story of a confident and persistent woman who is not afraid to pursue the man she wants, and it showcases the lively and optimistic spirit of the characters in the musical.