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Ozzfest is an annual tour of the United States (and in some years, Europe) featuring performances by many heavy metal and hard rock musical groups. It was founded by Ozzy Osbourne^[1] and his wife Sharon Osbourne,^[2] both of whom also organize each yearly tour with their son Jack Osbourne.^[3] The Ozzfest tour has featured bands of a variety of genres within heavy metal and hard rock, including alternative metal, thrash metal, metalcore, hardcore punk, nu metal, death metal, gothic metal and black metal. Ozzy Osbourne himself, as well as his band Black Sabbath, has played the tour several times over the years.^[1] The 2008 version of the festival will take place in Dallas on August 9, and feature Osbourne, Metallica, and others.^[4]