Rex Gildo
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Rex Gildo (July 2, 1939 - October 26, 1999), also known as Ludwig Alexander Hirtreiter, was a German singer.
He sang often with German-Danish singer Gitte Haenning, one of their best known songs is "Vom Stadtpark die Laternen".
In 1972 he had a huge hit with a song by Ralph Siegel, "Fiesta Mexicana (Hossa)".