Sten Torgny Söderberg ( born 26 November 1944 in Varberg , Sweden ) is a Swedish songwriter . He has worked a lot together with Lena Philipsson and written schlager songs such as " 100 % " , " Kärleken är evig " and " Diggi-loo diggi-ley " . " Diggi-loo diggi-ley " won the Swedish Melodifestivalen 1984 and even the Eurovision Song Contest 1984
Eurovision Song Contest 1984
Eurovision Song Contest 1984
Torgny Söderberg