Caroline Thérese af Ugglas Liljedahl (born 7 April 1972) is a Swedish singer, artist and chorister.Af Ugglas created the format for a televised choir contest, which was picked up by NBC in the United States as the show Clash of the Choirs, and by the Seven Network in Australia as Battle of the Choirs.

Source: Wikipedia (https://en.wikipedia.org/wiki/Caroline_af_Ugglas)