You may be thinking of Natalie Cole. Her "Unforgettable" video featured him, but not as a hologram.
Unforgettable
Your first love is unforgettable. Unforgettable is a beautiful song by Nat King Cole.
We had an unforgettable night.
Indimenticabile is an Italian equivalent of 'unforgettable'.
The duration of The Unforgettable is 3600.0 seconds.
Unforgettable
The Unforgettable was created on 2000-01-21.
Unforgettable Life was created in 1988.
The Unforgettable Fire was created in 1985.
An Unforgettable Summer was created in 1994.
Unforgettable - song - was created in 1951.