Collins was born the eldest of five siblings in Seattle, Washington, where she spent the first ten years of her life. Her father, a blind singer, pianist and radio show host, took a job in Denver, Colorado, in 1949, and the family moved there. Collins studied classical piano with Antonia Brico, making her public debut at age 13, performing Mozart's Concerto for Two Pianos. Brico took a dim view, both then and later, of Collins' developing interest in folk music, which led her to the difficult decision to discontinue her piano lessons. Years later, after she became known internationally, she invited Brico to one of her concerts in Denver. When they met after the performance, Brico took both of Collins' hands into hers, looked wistfully at her fingers and said, "Little Judy—you really could have gone places." Still later, Collins discovered that Brico herself had made a living when she was younger playing jazz and ragtime piano (Singing Lessons, pp. 71–72). In her early life, Collins had the good fortune of meeting many professional musicians through her father.