Question: Steve Jones and Blag Dahlia, have which occupation in common?

full_context: Document 1: The Professionals (band): The Professionals are an English punk rock band active from 1979 to early 1982 and again from 2015. They were formed by ex-Sex Pistols guitarist Steve Jones and drummer Paul Cook after that band's demise.
Document 2: Neurotic Outsiders: Neurotic Outsiders was a supergroup founded in 1995, consisting of Steve Jones of the Sex Pistols, Matt Sorum and Duff McKagan of Guns N' Roses, and John Taylor of Duran Duran. The first line-up featured Billy Idol and Steve Stevens (together with McKagan and Sorum), but they were soon replaced by Jones and Taylor. The group was originally called Neurotic Boy Outsiders.
Document 3: Mick Jones (The Clash guitarist): Michael Geoffrey "Mick" Jones (born 26 June 1955) is a British musician, singer and songwriter best known as the lead guitarist, co-lead vocalist, cofounder and songwriter for The Clash until his dismissal in 1983. Afterwards, he formed the band Big Audio Dynamite with Don Letts. Jones has recently played with the group Carbon/Silicon along with Tony James and has toured the world as part of the Gorillaz live band. In late 2011, Jones collaborated with Pete Wylie and members of The Farm to form The Justice Tonight Band.
Document 4: Paul Cook: Paul Thomas Cook (born 20 July 1956 in Hammersmith, London) is an English drummer and member of the punk rock band the Sex Pistols. He was also called "Cookie" by his friends on the punk music scene.
Document 5: Slash (musician): Saul Hudson (born July 23, 1965), better known by his stage name Slash, is a British-American musician and songwriter. He is best known as the lead guitarist of the American hard rock band Guns N' Roses, with whom he achieved worldwide success in the late 1980s and early 1990s. During his later years with Guns N' Roses, Slash formed the side project Slash's Snakepit. After leaving Guns N' Roses in 1996, he co-founded the supergroup Velvet Revolver, which re-established him as a mainstream performer in the mid to late 2000s. Slash has since released three solo albums: "Slash" (2010), featuring an array of famous guest musicians, and "Apocalyptic Love" (2012) and "World on Fire" (2014), recorded with his band, Myles Kennedy and the Conspirators. He returned to Guns N' Roses in 2016, nearly 20 years after he had left.
Document 6: Doyle Wolfgang von Frankenstein: Doyle Wolfgang von Frankenstein (born Paul Caiafa on September 15, 1964 in Lodi, New Jersey) is an American guitarist best known for his material with the horror punk band the Misfits and his own band eponymously named Doyle.
Document 7: Steve Jones (musician): Stephen "Steve" Philip Jones (born 3 September 1955) is an English rock guitarist, singer and actor, best known as a guitarist with the Sex Pistols. Following the split of the Sex Pistols he formed The Professionals with former bandmate Paul Cook. He has also released two solo abums, and worked with the likes of Johnny Thunders, Iggy Pop, Bob Dylan and Thin Lizzy. In 1995, he formed the short lived supergroup Neurotic Outsiders with members of Guns N' Roses and Duran Duran. Jones was ranked in "Rolling Stone"' s list of the "100 Greatest Guitarists of All Time".
Document 8: Paul Laine: Paul Robert Laine is a Canadian musician. He began his professional career as a solo artist, then was the singer of Danger Danger out of New York for eleven years, then fronted his own band, Shugaazer. Laine now has a band called "Darkhorse," whose album "Let It Ride" was released on April 29, 2014. He also teamed up with his former Danger Danger bandmates Bruno Ravel and Rob Marcello to form "The Defiants," who released their debut self-titled album on April 15, 2016.
Document 9: Dez Fafara: Bradley James 'Dez' Fafara (born May 12, 1966) is an American metal vocalist who performs in the bands DevilDriver and Coal Chamber.
Document 10: Paul Savage: Paul Savage is a Scottish musician and record producer, best known for being the drummer in the Scottish indie rock group The Delgados.
Document 11: Short Back 'n' Sides: Short Back 'n' Sides is the fifth solo album of Ian Hunter. Unsure of which direction he should take, Ian Hunter finally decided to collaborate with Mick Jones, who gave Hunter's songs a tougher and heavier touch. Fellow Clash member Topper Headon as well as Mick Ronson, Todd Rundgren and Ellen Foley also appeared on this album.
Document 12: Pauly D: Paul DelVecchio (born July 5, 1980), publicly known as DJ Pauly D, is an American television personality and disc jockey. He is best known for being a housemate on MTV's reality show "Jersey Shore".
Document 13: Blag Dahlia: Paul Cafaro (born May 8, 1966), better known by the stage name Blag Dahlia, is an American singer, musician, producer, and author. He is best known as the vocalist for punk band Dwarves.
Document 14: DJ Paul: Paul Duane Beauregard, (born October 13, 1977) better known by his stage name DJ Paul, is an American rapper, record producer, DJ, songwriter and entrepreneur from Memphis, Tennessee. He is a founding member of hip-hop group Three 6 Mafia and the half-brother of the late rapper Lord Infamous.
Document 15: Paul Baloff: Paul Baloff (April 25, 1960 – February 2, 2002) was an American singer, most notable for his time in thrash metal band Exodus.
ground_truth: singer