Natalie Cole, the American singer who overcame battles with substance abuse and the long shadow of her famous father to earn worldwide success of her own, has died. She was 65.

Publicist Maureen O'Connor told the Associated Press that Cole had died but had no details about how or where she died.

The daughter of Nat "King" Cole built a chart-topping career with hits such as This Will Be, Inseparable and Our Love. She fought health problems for years and received a kidney transplant in 2009 after developing hepatitis.

Cole recently had to cancel planned tour stops, including one in Louisville, due to illness.