Legendary musician Prince Rogers Nelson’s sister Tyka Nelson passed away on Monday at North Memorial Health in Robbinsdale, Minnesota. She was 64.

Tyka Nelson, who was once called “the most famous unknown singer” as she followed her brother, Prince, into a four-album recording career, and who helped promote his legacy after his death in 2016, died on Monday in Robbinsdale,

Tyka Nelson was a music writer and performer who died at the age of 64. Her son President Nelson told the Star Tribune his mother passed Monday morning but did not share details. Tyka Nelson's cousin Charles "Chazz" Smith paid tribute to her in a Facebook post.