What is the fine-grained topic of the following text: Biz de ogrenciyiz bir pe Leppänen - Ennio Morricone - Eija Ahvo - Vikingarna - Nasty Suicide - Def Leppard - Radion Sinfoniaorkesteri - Irene Cara - Ancient Rites - Espoon Sinfonietta - Tavares - Enne Vesa - Sebastian, Tarja - Janne Hurme - Mona Carita - Kaunisto, Pasi - Smurffit - Innanen, John - Hassisen Kone - Rogers Kenny - Ylitalo Martti - Tumppi Varonen - Nancy Sinatra - Gloria Gaynor - Okko Makkonen. Only return the topic.
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