This is not a duet in the traditional sense, two people singing together at the same time; however, the use of audio technology to create a duet between a deceased father and his daughter was a very popular move when Natalie Cole's "digital duet" of Unforgettable came out on her 1991 album, Unforgettable... With Love. (Several other artists have used the technique over the years, including Kenny G and Celine Dion. Ironically, Kenny G was criticized for his "digital duet" with Louis Armstrong's song, What a Wonderful World.) Natalie Cole's duet brought her three Grammy Awards in 1992: Song of the Year, Record of the Year and Best Traditional Pop Vocal Performance. The original recording of Unforgettable by Nat King Cole was inducted into the Grammy Hall of Fame in 2000.