X Factor singer Janet Devlin has unveiled her new music video, and she's come a long way since her X Factor days. See how some other stars of the show have transformed, too...
Queen guitarist Brian May has told the BBC that Freddie Mercury will "appear" on stage during a special performance of West End musical We Will Rock You.
However, he stressed that the new effect was not a hologram. He termed it "an optical illusion of sorts".
We explore this increasing trend of keeping the memory of legendary artists alive in this gallery.
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Watch the music video for George Michael's Going To A Town, from his hit album, Symphonica.
Date 15/04/14, Duration 4:53, Views 14032