Her optimism amid personal struggles was inspirational. Her voice? Unforgettable.

Natalie Cole has died, reports the Associated Press and TMZ. She was 65.

Natalie Cole, the Grammy-winning singer who had hits with such songs as “This Will Be” and “Our Love” and recorded “Unforgettable … With Love,” a best-selling album of songs made famous by her late father, Nat King Cole, died Thursday evening.

She was 65.

Cole’s death was confirmed by publicist Maureen O’Connor.