Siegfried & Roy, consisting of Siegfried Fischbacher and Roy Horn (born Uwe Ludwig Horn) are a German-American duo of former stage magicians and entertainers who became known for their appearances with white lions and white tigers.From 1990 until Roy's severe onstage injury, which ended their stage careers on October 3, 2003, the duo formed Siegfried & Roy at the Mirage Resort and Casino, which was regarded as the most-visited show in Las Vegas, Nevada.