Robert John Arthur Halford is an English singer and songwriter. He is best known as the lead vocalist of the heavy metal band Judas Priest, which was formed in 1969 and has received accolades such as the 2010 Grammy Award for Best Metal Performance. He has been noted for his powerful and wide ranging operatic vocal style and trademark leather-and-studs image, both of which have become iconic in heavy metal. He has also been involved with several side projects, including Fight, Two, and Halford.

Judas Priest are an English heavy metal band formed in Birmingham in 1969. They have sold over 50 million albums and are frequently ranked as one of the greatest metal bands of all time. Despite an innovative and pioneering body of work in the latter half of the 1970s, the band struggled with indifferent record production and a lack of major commercial success until 1980, when their sixth studio album British Steel brought them notable mainstream attention.