Sarah Dash

Sarah Dash, the singer who gained national fame singing in vocal groups with Patti LaBelle starting in the 1960s, died Monday at the age of 76, multiple reports and officials say.

Dash’s passing was first reported by Soul Tracks and WDAS radio in Philadelphia, and she was swiftly mourned on social media for her pioneering singing in the 1960s and 1970s and beyond.

The group Labelle, of which Dash was a founder, topped the charts in 1974 with the disco smash “Lady Marmalade.” It was inducted into the Grammy Hall of Fame in 2003. At the time, Labelle was a trio, along with Nona Hendryx and LaBelle.