Diabolical Masquerade was a Swedish one-man black metal band with progressive influences.
 The band was formed in 1993 in Stockholm as side project of Anders Nyström (aka Blakkheim), known for his work as the guitarist of Katatonia.
U.K. were a British progressive rock supergroup originally active from 1977 until 1980.
 The band was composed of singer/bassist John Wetton (formerly of King Crimson, Roxy Music, Bryan Ferry's band and Uriah Heep), keyboardist/electric violinist Eddie Jobson (formerly of Curved Air, Roxy Music and Frank Zappa's band), guitarist Allan Holdsworth (formerly of Tempest, Soft Machine, The New Tony Williams Lifetime and Gong) and drummer Bill Bruford (formerly a full member of Yes and King Crimson, and also a tour drummer for Genesis), who was later replaced by drummer Terry Bozzio (formerly of Frank Zappa's band).
 UK reformed with John Wetton, Eddie Jobson and Terry Bozzio for a world tour in 2012.
Bloodbath is a Swedish death metal supergroup from Stockholm, formed in 1998.
 The band has released four full-length albums, two EPs and two DVDs depicting their performances at Wacken Open Air (in 2005) and Bloodstock Open Air (in 2010).
 The group comprises Martin Axenrot (Opeth), Anders Nyström (Katatonia), Jonas Renkse (Katatonia), Nick Holmes (Paradise Lost), and Per Eriksson, who was previously the guitar technician for both Bloodbath and Katatonia.
Anders Nyström (born 8 February 1933 in Stockholm) is a Swedish actor.
Wetton/Downes (sometimes stylised as Wetton-Downes or Wetton & Downes, though the album is given no official title) is the first album released by former (at the time) Asia bandmates John Wetton and Geoff Downes, and is a precursor to their "Icon" franchise.
 It is essentially a collection of (previously unreleased) demo tracks, mostly recorded during Asia's hiatus in the late 1980s through the time of their brief reformation in 1990.
 In September 2017, Downes announced (via his Twitter account) the re-release of this title, with remastered sound and additional tracks, as "Icon Zero"
Anders Nyström (born April 22, 1975), also known as Blakkheim (or formerly Blackheim) is a Swedish guitarist.
The Fall of Hearts is the tenth studio album by Swedish metal band Katatonia.
 It was released on May 20, 2016.
 The album, mostly written and produced by founding members Jonas Renkse and Anders Nyström, was the first to also feature new members Daniel Moilanen and Roger Öjersson.
 The album moved in a more progressive rock direction than prior albums, and was generally well received by critics.
 Two singles were released in promotion of the album, "Old Heart Falls", and "Serein".
John Kenneth Wetton (12 June 1949 – 31 January 2017) was an English singer, bassist, and songwriter.
 He was born in Willington, Derbyshire, and grew up in Bournemouth, Dorset.
 He rose to fame with bands Mogul Thrash, Family, King Crimson, Roxy Music/Bryan Ferry, Uriah Heep, and Wishbone Ash.
After completing their second US tour in mid 1971, John Weider left the band and was replaced by John Wetton on bass and vocals .
 The band's direction was notably changed with Wetton bringing along his trademark propulsive performance style, as evidenced on the album opener "Between Blue and Me".
 After only a year and one more album, Wetton left to join the latest line-up of King Crimson and was replaced by Jim Cregan.
 "Fearless" was the first Family album to chart in the United States, reaching #177 on the Billboard 200 in March 1972, and staying on the charts for 7 weeks.
Katatonia is a Swedish metal band formed in Stockholm in 1991 by Jonas Renkse and Anders Nyström.
 The band started as a studio-only project for the duo, as an outlet for the band's love of death metal.
 Increasing popularity lead them to add more band members for live performances, though outside of the band's founders, the lineup was constantly changing, revolving door of musicians throughout the 1990s, notably including Mikael Åkerfeldt of the band Opeth for a period.
 After two death/doom albums, "Dance of December Souls" (1993) and "Brave Murder Day" (1996), problems with Renkse's vocal cords coupled with new musical influences lead the band away from the screamed vocals of death metal to a more traditional, melodic form of heavy metal music.
 The band released two more albums, "Discouraged Ones" (1998) and "Tonight's Decision" (1999), before settling into a stable quintet lineup for all of 2000's.
 The band released four more albums with said lineup - "Last Fair Deal Gone Down" (2001), "Viva Emptiness" (2003), "The Great Cold Distance" (2006), and "Night Is the New Day" (2009), with the band slowly moving away from their metal sound while adding more progressive rock sounds to their work over time.
 While lineup changes started up again into the 2010s, Renkse and Nyström persisted, and the band continued to release music, including "Dead End Kings" (2012) and their most recent, their tenth studio album, "The Fall of Hearts", released on May 20, 2016.

Question: Who was born earlier, John Wetton or Anders Nyström?
Answer: John Kenneth Wetton