PM: Paddy O'Connell faces his hologram
When Tupac Shakur appeared at a live concert earlier this year, it took fans by surprise.
The rapper died 16 years ago, but a 3D image of him, described as a hologram, performed on-stage alongside living stars Dr Dre and Snoop Dogg.
Now the technology - which actually relies on a Victorian optical illusion known as Pepper's Ghost - could see more artists like Elvis Presley and Jimi Hendrix coming back from the dead.
Radio 4 PM sent Paddy O'Connell to the London-based company behind the technology, Musion Systems, where they showed him how it worked.
You can listen to more about the artists gigging from beyond the grave here.
23 Aug 2012