Born Amelia McMahon in Pittsburgh in 1959, she moved to New York City in 1976. She married dB's drummer Will Rigby in the 1980s, and during the late 1980s and early 1990s recorded with New York bands such as The Shams and Last Roundup.
After divorcing Rigby, her solo career began in 1996.
In 1999 Rigby moved to Nashville to pursue work as a songwriter-for-hire.
She later relocated to Cleveland, and in late 2006 started spending time in France with her husband, Wreckless Eric.