Question: Which person on the Angel of Retribution album is gay?

full_context: Document 1: Halford (band): Halford is an American heavy metal band formed in 1999 by British singer Rob Halford, who is best known as the lead vocalist for Judas Priest. Halford formed the band to return to his heavy metal roots. His two previous projects were a "street metal"-style band called Fight and the industrial metal band 2wo.
Document 2: Devil's Playground (album): Devil's Playground is the sixth studio album by English rock vocalist Billy Idol, released on 22 March 2005. It is his first studio album in over a decade (the latest being 1993's "Cyberpunk"), and his first new studio songs since 2001 (Idol's cover of "Don't You (Forget About Me)" on "Greatest Hits"). The album also reunited Idol in the studio with guitarist Steve Stevens and producer Keith Forsey. All songs were written or co-written by Idol except "Plastic Jesus". The album was engineered and mixed by Brian Reeves at the Jungle Room in Los Angeles.
Document 3: Judas Rising: "Judas Rising" is a song by heavy metal band Judas Priest. It is the opening track on the band's 2005 album Angel of Retribution. The song is about the Judas Priest "Messiah" on the cover of the albums "Sad Wings of Destiny", "Painkiller" and "Angel of Retribution". . It was also included on the album's The Essential Judas Priest and
Document 4: Halford III: Winter Songs: Halford III: Winter Songs is the third studio album by the heavy metal band Halford, the solo project of Judas Priest frontman Rob Halford.
Document 5: War of Words (Fight album): War of Words is the debut studio album by English-American heavy metal band Fight, released on September 14, 1993 by Epic Records. This is the first release Rob Halford recorded after his departure from Judas Priest in 1992. He brought with him drummer Scott Travis from the band and recruited three new members. The music is a mixture between the heavy metal sound created by Judas Priest and a thrash/groove sound similar to that of Pantera. Halford is also credited with playing guitar but only recorded vocals for the album.
Document 6: Resurrection (Halford album): Resurrection is the debut album by the band Halford released in 2000. It was recorded over thousands of hours of work from August 1998 to June 2000. The album marks the return of Rob Halford's heavy metal roots after several years of musical experimentation. In 2006, "Resurrection" was remastered and released with an expanded, reorganized track list on iTunes, and was later released on CD in 2009. The album features "The One You Love to Hate," a duet with Iron Maiden vocalist Bruce Dickinson. "Silent Screams" is a re-recorded song that was originally demoed by Halford's previous band 2wo.
Document 7: St. Anger: St. Anger is the eighth studio album by American heavy metal band Metallica, released on June 5, 2003, by Elektra Records. It was the band's last album released through Elektra, and the second-longest timespan between studio albums from Metallica, with nearly six years between the release of "Reload" and this album. It is also the final collaboration between Metallica and producer Bob Rock, whose relationship began with the band's fifth studio album, 1991's "Metallica". "St. Anger" was originally intended for release on June 10, 2003, but was released five days earlier due to concerns over unlicensed distribution through peer-to-peer file sharing networks. The "St. Anger" sessions also mark the only time Rock played when the music was being recorded, filling in for the departed bassist Jason Newsted.
Document 8: Hell Bent Forever: A Tribute to Judas Priest: Hell Bent Forever: A Tribute to Judas Priest is a tribute album, released in 2008. It includes several rock and metal bands such as Motörhead, Icarus Witch, L.A. Guns and Sepultura, covering songs by British heavy metal band Judas Priest. The album's font is a mistake because the red lettering is in the style of Iron Maiden's logo instead of Judas Priest's logo
Document 9: Demolition (Judas Priest album): Demolition is the fourteenth studio album by British heavy metal band Judas Priest, the first in the decade of the 2000s. It is the second and final studio album to feature Tim 'Ripper' Owens on vocals. It is the only Judas Priest studio album to feature a Parental Advisory label due to some songs featuring profanity: "Machine Man," "Hell Is Home" and "Metal Messiah" all carry explicit markings on the album's iTunes page.
Document 10: Retribution Tour: The Retribution Tour was a 2005 concert tour by British heavy metal band Judas Priest which was in support of the album "Angel of Retribution". It ran from 23 February 2005 until 3 December 2005.
Document 11: Ronnie James Dio: Ronald James Padavona (July 10, 1942May 16, 2010), better known by his stage name Ronnie James Dio, was an American singer, songwriter, and musician. He fronted and/or founded numerous groups including Elf, Rainbow, Black Sabbath, Dio, and Heaven & Hell. He is credited with popularizing the "metal horns" hand gesture in metal culture and was known for his medieval-themed lyrics. Dio possessed a powerful versatile vocal range capable of singing both hard rock and lighter ballads.
Document 12: Rob Halford: Robert John Arthur Halford (born 25 August 1951) is an English singer and songwriter, who is best known as the lead vocalist for the Grammy Award-winning heavy metal band Judas Priest and famed for his powerful wide-ranging voice. AllMusic says of Halford: "There have been few vocalists in the history of heavy metal whose singing style has been as influential and instantly recognizable", possessing a voice which is "able to effortlessly alternate between a throaty growl and an ear-splitting falsetto". Halford was voted number 33 in the greatest voices in rock by Planet Rock listeners in 2009. In addition to his work with Judas Priest, he has been involved with several side projects, including Fight, 2wo and Halford. In 1998, he came out as gay in an interview with MTV News.
Document 13: Angel of Retribution: Angel of Retribution is the fifteenth studio album by British heavy metal band Judas Priest, released in 2005. It is the band's first album since "Painkiller" (1990) to feature Rob Halford. The album debuted at #13 on the US "Billboard" chart, which made it the third highest chart of a Judas Priest album (the second being "Nostradamus" and the highest being "Redeemer of Souls"). The album was produced by Roy Z, who co-wrote the song "Deal with the Devil".
Document 14: Bruce Dickinson: Paul Bruce Dickinson (born 7 August 1958), known professionally as Bruce Dickinson, is an English singer, songwriter, musician, airline pilot, entrepreneur, author and broadcaster. He is the lead singer of the heavy metal band Iron Maiden and is renowned for his wide-ranging operatic vocal style and energetic stage presence.
Document 15: Halford IV: Made of Metal: Halford IV: Made of Metal is the fourth studio album by the heavy metal band Halford, the solo project of the Judas Priest frontman Rob Halford. It was produced by Roy Z and recorded during 2009 and 2010. The album was released on September 28, 2010. Singles from the album include "The Mower" and "Made of Metal", for which an animated video was made.
ground_truth: Rob Halford