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Sietse van Daalen AKA Da Mouth of Madness is The Voice of Hardcore: a pioneering MC, multifaceted talent, entertainer, mentor and respected ambassador for the scene. He’s the same energetic host on the mainstage of Defqon.1, with Peacock in Concert, at Thunderdome and BKJN. He doesn’t live in sub-genres, he lives for hardcore!