18/04/2012 13:49 BST | Updated 19/04/2012 04:22 BST

Tupac Coachella Hologram Was Not A Hologram

Shocking news from Coachella: the Tupac hologram that brought the gangster rapper 'back from the dead' was not actually a hologram, but a visual trick using tech developed by a UK-based company.

We'll pause while you raise a fist to the sky in fury.

The Tupac 'hologram' is actually an optical illusion using reflections on glass, known as Pepper’s Ghost. The old magic trick is named for John Henry Pepper, who according to Wikipedia, first used the trick in the 1860s.

Tupac 'in action' at Coachella, courtesy of Dr Dre and Snoop Dogg

The trick is performed by projecting an image up through a pane of glass on the stage.

The company which produced the visual effect was named by Ars Technica as AV Concepts. They use a proprietary mylar sheet called a Musion Eyeliner from UK company Musion.

The clever visual technique brought Tupac Shakur on stage to perform with Snoop Dogg.

The two hip-hop legends appeared to perform Tupac's hits California Love and Ain't Nothin' Like A Gangsta Party after an eerie solo rendition of Hail Mary .

Musion told The Huffington Post that AV used the Eyeliner technology, which was invented in 2000 by the company's director Uwe Maas.

The same technology was used to great effect in the Gorillaz and Madonna performance at the Grammy awards, for the Black-Eyed Peas 2012 tour and during runway shows for fashion label Burberrry.

See how they do it below:

The technology can bring performers from across the world on stage together at the same time, anywhere in the world. Who would you most like to see 'Musioned' together?

AV Concepts was contacted for comment by The Huffington Post, telling us: "we are filled with gratitude on the amount of recognition that is coming our way. Since there is still another weekend of Coachella and we want it to be as magical for those fans as it was this past weekend, we will not be doing interviews or discussing the technology at this time."

Tupac 'in action'...