In May 2014, a 'hologram' of this person appeared at the Billboard Music Awards ceremony in the USA as a hologram, dancing along to a song named "Slave to the Rhythm". This is from an album named "Xscape", which is a posthumous compilation of that person's songs.
Who
[+ Show Answer]
Michael Jackson (
see this). Incidentally, the effect is technically not a hologram -
see this for more.