Rob Halford is best known as the lead vocalist for the Grammy Award-winning heavy metal band Judas Priest. He is considered one of the most consistently powerful singers in rock, possessing a wide vocal range, and is particularly known for his trademark high-pitched, operatic, soaring screams. In addition to his work with Judas Priest, he has been involved with several side projects, including Fight, 2wo and Halford.

'The Essential Rob Halford' features 30 tracks from these side projects - Fight (with JP drummer Scott Travis, bassist "Jay Jay" Brown, and guitarists Brian Tilse and Russ Parrish) who released two albums between 1993 – 1995; 2wo saw him collaborate with guitarist John Lowery in industrial influenced project, which was executively produced by Trent Reznor, and with his band Halford and the widely acclaimed album 'Resurrection' (2000), produced by Roy Z.