"Unforgettable ... in every way," Natalie Cole famously sang.
Singer Natalie Cole has died at the age of 65. (Video via Elektra Records / Natalie Cole)
TMZ first reported the news. Cole had hit songs of her own, such as "This Will Be," but she was also famous for her virtual duet with her late father, Nat "King" Cole. (Video via CBS)
She had reportedly struggled with substance abuse for years and eventually contracted liver disease and hepatitis C. (Video via CNN)
She is survived by one son.
