Question:  Which band, Mayday Parade or Killing Joke, is an American rock band?

Context articles: Mayday Parade
Killing Joke (2003 album)
Collider (Cartel album)
Ha (Killing Joke album)
Killing Joke (1980 album)
Killing Joke
Pandemonium (Killing Joke album)
A Lesson in Romantics
Extremities, Dirt and Various Repressed Emotions
Mayday Parade (album)

Mayday Parade is an American rock band from Tallahassee, Florida.
 Their debut EP "Tales Told by Dead Friends" was released in 2006, and sold over 50,000 copies without any label support.
 In July 2007, Mayday Parade released their debut album "A Lesson in Romantics".
 After signing to Fearless in 2006, the band also signed onto a major label with Atlantic in 2009.
 Their second studio album, "Anywhere but Here" was released in October 2009 and their third album, entitled "Mayday Parade", was released in October 2011.
 Mayday Parade's fourth album, titled "Monsters in the Closet", was released in October 2013.
 Their fifth album, titled "Black Lines", was released October 2015.
Killing Joke is the eleventh studio album by English rock band Killing Joke, released on 28 July 2003 by record label Zuma Recordings.
Collider is the fourth studio album by American rock band Cartel.
 In 2008 Cartel left Epic to sign with Wind-Up.
 Following this the group released "Cycles" (2009).
 Bassist Jeff Lett left to focus on school, and the band parted ways with Wind-Up.
 In October 2011 the group self-released "In Stereo".
 The band called the idea of self-releasing music as "experiment[al]".
 Following a tour with Set Your Goals in March and April 2012 the group started writing new material.
 In August, the band started recording, and they finished in January 2013.
 The album was produced by vocalist Will Pugh and guitarist Joseph Pepper.
 After making a few songs available for streaming, the album was self-released on March 26, 2013.
 It charted at number 141 on the "Billboard" 200 chart.
 To support the album, the band toured the U.S. and the UK alongside New Found Glory, State Champs, Kids in Glass Houses and Mayday Parade.
"Ha" or "Ha": Killing Joke Live is the first commercially distributed live recording by English rock band Killing Joke.
 It was recorded at Larry's Hideaway in Toronto, Ontario, Canada on 9 and 10 August 1982, and released on 4 November by record label Virgin.
Killing Joke is the debut studio album by English rock band Killing Joke.
 It was released in August 1980 by record label E.G.
Killing Joke are an English rock band formed in October 1978 in Notting Hill, London, England.
 The original line-up included Jaz Coleman (vocals, keyboards), Paul Ferguson (drums), Geordie Walker (guitars) and Youth (bass).
Pandemonium is the ninth studio album by English rock band Killing Joke, released on 2 August 1994 by record label Butterfly.
 This album marked Killing Joke's return after a four-year-long hiatus, the longest the band has taken since it was initially founded.
 This album also featured the return of founding member Youth, who replaced Paul Raven on bass.
A Lesson in Romantics is the debut studio album by American rock band Mayday Parade.
 The band resulted from the merger of Kid Named Chicago and Defining Moment.
 In June 2006 the band released an EP, "Tales Told by Dead Friends", which they sold to people by following the 2006 edition of Warped Tour and offering copies; it eventually sold 10,000 copies.
 The band signed to Fearless Records in August.
 "A Lesson in Romantics" was recorded in early 2007 with producers Zack Odom and Kenneth Mount.
 Vocalist/guitarist Jason Lancaster left the band in March 2007 citing a lack of writing credit on the band's releases.
 Prior to the release of "A Lesson in Romantics", "Black Cat", "When I Get Home, You're So Dead", and "Jamie All Over" were made available for streaming.
 After the album's release, the band participated in the 2007 edition of Warped Tour.
Extremities, Dirt and Various Repressed Emotions is the eighth studio album by English rock band Killing Joke, recorded in August 1990 and in November 1990 by record label Noise.
 This is the only Killing Joke album to feature drummer Martin Atkins (formerly of Public Image Ltd and Brian Brain).
Mayday Parade is the third studio album by American rock band Mayday Parade.
 It was released by Fearless on October 4, 2011.