Judas Priest is a British heavy metal band formed in 1969, known for shaping the genre with their twin guitar sound, complex song structures, and vocalist Rob Halford's operatic style. Their influences range from blues rock to progressive rock, and they are credited with introducing the leather-and-studs aesthetic to the heavy metal culture. Notable works include the albums "British Steel" and "Screaming for Vengeance", which are regarded as landmarks in the history of heavy metal. Judas Priest's significant contribution to the genre has solidified their position as one of the greatest heavy metal bands of all time.