She continued to tour and record throughout the sixties, but her commercial potential plummeted after 1964. She retired from the music business in 1971.
Interviewed between 1987 and 1988 after the success of the Kylie Minoguecover version of "The Loco-Motion", Boyd stated that she did not like the new version; however its then-current popularity allowed her to make a comeback in show business.
She returned to live performing with other artists of her era on the cabaret and oldies circuits. She also occasionally recorded new songs.
She continued performing until she was diagnosed with cervical cancer in October 2001. She died 18 months later in Kinston, North Carolina, aged 59, and is buried in a small cemetery in Belhaven, North Carolina. Her gravesite was sparsely marked until July 2008, when a report by WRAL-TV of Raleigh, North Carolina highlighted deteriorating conditions at the cemetery and efforts by the city of Belhaven to have it restored. A simple white cross had marked the site until a new gravestone was unveiled in November of that year.