Jack Joseph Osbourne (born 8 November 1985) is an English media personality with dual American and British citizenship. As the son of heavy metal singer Ozzy Osbourne, he starred on MTV's reality series The Osbournes (2002–05), along with his father, mother Sharon, and sister Kelly. Osbourne has since pursued a career as a fitness and travel reporter, presenting shows such as Jack Osbourne: Adrenaline Junkie (2005–09) and BBC's Saving Planet Earth (2007). He was diagnosed with relapsing remitting multiple sclerosis in 2012.