Question: which band was formed first, Dubstar or Concrete Blonde?

Context paragraphs:
Bloodletting (Concrete Blonde album): Bloodletting is the third studio album by American alternative rock band Concrete Blonde.  It was released on May 15, 1990.  It marks a shift for the band towards gothic rock.

Concrete Blonde y Los Illegals: An album produced as a joint effort between Johnette Napolitano and James Mankey, previously founding members of alternative rock band Concrete Blonde, and L.A. pachucho punk band Los Illegals.  It contains a blend of hard rock and Latin music.

Second Motion Records: Second Motion Records is part of Second Motion Entertainment based in Carrboro, North Carolina.  The Label was founded in Chapel Hill, NC by Stephen Judge, who is the former manager of the rock band Athenaeum (who released two albums on Atlantic Records in the mid to late 90's) as well as the former General Manager/A&R Director of Redeye Distribution and Yep Roc Records.  Judge has also worked with such artists as: Liam Finn, Bell X1, John Doe, Paul Weller, Public Enemy, Daniel Lanois, Martin Sexton, Sloan, Concrete Blonde, The Supersuckers and others.

Concrete Blonde: Concrete Blonde were an alternative rock band based in the United States.  They were active from 1982 to 1995, from 2001 to 2004, and then reunited in 2010 and split up again in 2012.  They are best known for their 1990 album "Bloodletting", their top 20 single "Joey", and Johnette Napolitano's distinctive vocal style.

Estrojam's Decibelle Music and Culture Festival: Decibelle (formerly Estrojam) is a 501c3 NFP music and culture festival that promotes equality and was established in 2003.  Past headliners have included, Wanda Jackson (First Lady of Rock who toured with Elvis in the 1950s and 1960s), Nina Hagen, Concrete Blonde, Cat Power, The Gossip, Peaches, Amy Ray of the Indigo Girls and Margaret Cho.  The hip hop, post punk, disco, and dance-punk band ESG played their final show on Friday, September 21, 2007 at Chicago's Abbey Pub, during the Decibelle festival.

Manifesto Records: Manifesto Records is an independent record label based in Los Angeles, California that has released records by Dead Kennedys, The Wedding Present, Tom Waits, Tim Buckley, Lilys, Concrete Blonde, Cranes (band), Sing-Sing (band), The Czars, Screamin' Jay Hawkins, The Rugburns, Cinerama (band), and others.  Manifesto released the entire catalogue of Dead Kennedys in 2001 after the band obtained the rights from Alternative Tentacles.  Manifesto is also the home of an imprint of Mark Volman and Howard Kaylan of The Turtles, called FloEdCo; this imprint has released albums by The Turtles and Flo & Eddie.  In November 2015, Manifesto re-released the entire catalogue of Lee Michaels that had been on A & M Records.

Dubstar: Dubstar are an English band, performing dream pop and alternative dance, as well as occasional pop ballads and, on later releases, guitar-laden rock with industrial twists.  The group was formed in 1992 by Steve Hillier and Chris Wilkie in Newcastle-upon-Tyne.  Sarah Blackwood joined in 1993, replacing Hillier on vocals.

Paul Thompson (musician): Paul Thompson (born 13 May 1951) is an English drummer, who is best known as drummer for the rock band Roxy Music (from 1971 to 1980 and then from 2001 onwards).  He was also the drummer for the Oi!  band, Angelic Upstarts and the American alternative rock band Concrete Blonde.  He is a member of Andy McKay's project with the Metaphors and joined the reformed Lindisfarne in 2013.

Harry Rushakoff: Harry Rushakoff (born November 16, 1958) is a former drummer for the band Concrete Blonde.

Concrete Blonde (album): Concrete Blonde is the acclaimed debut album of American alternative rock band Concrete Blonde.  "Still in Hollywood", "Your Haunted Head" and "Over Your Shoulder" were featured on "The Hidden" soundtrack.  "Your Haunted Head" and "Over Your Shoulder" appeared also on "The Texas Chainsaw Massacre 2" soundtrack.  In 1997, Canadian punk band Propagandhi covered "True" for the Fat Wreck Chords compilation album "Physical Fatness", as well Propagandhi's rarities compilation "Where Quantity Is Job #1".

Supporting paragraphs: Dubstar Concrete Blonde
Answer: Concrete Blonde