Rob Halford and Brad Delp are both what?
Brad Delp Bradley Edward Delp (June 12, 1951 – March 9, 2007) was an American singer and songwriter, best known as the lead vocalist of the rock bands Boston and RTZ.
Rob Johnson (Australian politician) Robert Frank "Rob" Johnson (born 17 October 1943) is a former Australian politician who was a member of the Legislative Assembly of Western Australia from 1993 to 2017. He was elected as a member of the Liberal Party, and served as a minister in the government of Colin Barnett from 2008 to 2012, but resigned from the party in 2016 to sit as an independent. He was defeated at the 2017 election.