The singer's death was announced Saturday. She reportedly died earlier this week.
Niles Rodgers, the founder of Chic, posted about Anderson's death on Instagram, posting a montage of photos from her career.
Chic had several massive hits, including "Le Freak," "I Want Your Love" and "Good Times."
Anderson became a lead singer when one of the band's original leads left the group in 1978.
It's unclear how Anderson died.