Plot: Enjoy this special encore of Natalie Cole’s Emmy-winning concert of her GRAMMY-winning album in Great Performances: Unforgettable With Love - Natalie Cole. Featuring classics such as “Mona Lisa,” “The Very Thought of You” and “For Sentimental Reasons,” the concert also features a special performance of Nat King Cole’s signature song “Unforgettable” sung as a duet by Natalie Cole and her father