There are 3 bands with the name Citizens.
1 - Citizens is a Christian Indie Worship band from Mars Hill U-District church in Seattle.
Members:
Zach Bolen
Adam Skatula
Nathan Furtado
Nate Garvey
Tom McConnell
Their Marshill Music page.
2 - Citizens is a Punk/Hardcore/Post Hardcore trio from Glasgow, Scotland.
Tracks can be downloaded on their myspace page.
They have one 7"/Cd release "Try Smiling" and a 4 track CD EP "Try Harder" on the label "Wolf Among Wolves" from Glasgow.
Members:
Drums: Iain Stewart (also in Bronto Skylift)
Guitar, Vocals: Craig McIntyre
Bass, Vocals: Owen Batchelor
3 - Citizens formed in Houston, TX in April of 2002 by Keith Perkins (Guitar, Vocals) and Alan Rencher (Drums). Started as a Street-Punk band, they later moved toward Crossover Thrash after moving to Oxnard, CA in 2004.
Citizens started touring shortly after with bands like The Last Priority, Homesick Abortions, and others. They self-released their first two EPs in 2006 and 2007 respectively before breaking up later that year
Members:
Alan Rencher - Drums: 2002 - 2007
Keith Perkins - Guitar, Vocals: 2002 - 2007
Moises Arriaga - Bass: 2002 - 2004
James - Bass: 2005
Ben Hament - Bass: 2005 - 2007
Jason Tibbitts - Vocals: 2006 - 2007