Question: Were both Oliver Sykes and Gordon Gano lead vocalists?

Context paragraphs:
Violent Femmes: Violent Femmes is an American folk punk band from Milwaukee, Wisconsin, initially active from 1980 to 2009.  s of 2013 , the band is active again.  The band is a trio, including singer, guitarist and songwriter Gordon Gano, bassist Brian Ritchie, and various drummers: Victor DeLorenzo (1980–1993, 2002–2009 and 2013), Guy Hoffman (1993–2002), Brian Viglione (2013–2016), and John Sparrow (2016-present).

Gordon Gano: Gordon James Gano (born June 7, 1963) is an American musician.  He is best known for being the singer, guitarist and songwriter of American alternative rock band Violent Femmes.

Oliver Sykes: Oliver "Oli" Scott Sykes (born 20 November 1986) is an English musician, best known as the lead vocalist of the band Bring Me the Horizon.  He also founded the apparel company Drop Dead clothing.  Sykes has also created the graphic novel "Raised By Raptors" with Drop Dead Clothing artist Ben Ashton-Bell.

Frank Ferrer: Frank Ferrer (born March 25, 1966) is an American rock drummer.  Ferrer is best known as the drummer for American rock band Guns N' Roses, with whom he has played, toured, and recorded since 2006.  Ferrer was also a member of The Psychedelic Furs, Love Spit Love as well as The Beautiful.  He has recorded and worked with several high profile musicians including Robi "Draco" Rosa, Tool, Gordon Gano, PJ Harvey, Tommy Stinson, Nena, Frank Black of The Pixies , Neil Young, Perry Farrell and Cheetah Chrome of The Dead Boys.

Louise Attaque: Louise Attaque is a French chanson/folk rock group founded in 1994.  Several of the group's albums were produced by Gordon Gano, lead singer of Violent Femmes, a band whom Louise Attaque often cites as an influence and for whom their own band is named.  The band is signed to the Atmosphériques record label.

Hallowed Ground (Violent Femmes album): Hallowed Ground is the second album by Violent Femmes, released in June 1984.  Like the band's first album, the songs were mostly written by singer/guitarist/lyricist Gordon Gano when he was in high school.  "Country Death Song", for example, was based on a true story from an 1862 news article about a man who intentionally threw his daughter into a well and then hanged himself in his barn.  It was written by Gano during his 10th grade study hall.  The Christian-related lyrics on "Hallowed Ground" were thought by some to be sarcastic, but Gano is a devout Christian.  The other two members of Violent Femmes were atheists, and initially refused to perform those songs, but after their debut had been recorded, they relented and several of Gano's religion-themed songs were recorded for "Hallowed Ground".

Shadow Moses (song): "Shadow Moses" is a song by English rock band Bring Me the Horizon.  Written by vocalist Oliver Sykes, guitarist Lee Malia and keyboardist Jordan Fish, it was produced by Terry Date and featured on the band's 2013 fourth studio album "Sempiternal".  The song was released as the lead single from the album on 11 January 2013, reaching number 82 on the UK Singles Chart and number 2 on the UK Rock & Metal Singles Chart.

Hitting the Ground: Hitting the Ground is Violent Femmes member Gordon Gano's first solo album.  It was produced by Warren Bruleigh and released in 2002.  Gano wrote the songs for a film of the same name.

New Times (album): New Times is the sixth studio album released by Violent Femmes in 1994.  It is the first album to not feature original drummer Victor DeLorenzo on drums, who had been replaced by Guy Hoffman.  "Breakin' Up," a song lead singer Gordon Gano had written years before, was the lead single.  Its video received minor airplay on MTV and appears on the band's DVD, "Permanent Record - Live & Otherwise".  The album did not sell well, but featured many of the Femmes' most musically complex and lyrically inventive songs, including "4 Seasons," and concert staple "I'm Nothing."

Gone Daddy Gone: "Gone Daddy Gone" is a song written by Gordon Gano and originally recorded by his group Violent Femmes for their 1983 eponymous debut album.

Supporting paragraphs: Oliver Sykes Gordon Gano
Answer: yes