The Wise Guys were a German a cappella band that was formed in 1990 in Cologne, Germany and split in 2017.
Apart from Nils Olfert and Björn Sterzenbach, the members all attended the Hildegard-von-Bingen-Gymnasium in Cologne from 1981 to 1990. With their schoolmates Clemens Tewinkel and Christoph Tettinger, who also founded a brass band with them, they formed a rock band. At a school event, the band performed a single a cappella song.
After graduating from high school with their... more
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