Taking Back Sunday is an American rock band from Long Island, New York.
The band was founded in 1999 by Eddie Reyes.

Current members:
John Nolan – lead guitar, keyboards, vocals (1999–2003; 2010–present)
Adam Lazzara – bass guitar, vocals (1999–2001); lead vocals (2001–present)
Shaun Cooper – bass guitar (2001–03; 2010–present)

Former members:
Jesse Lacey – bass guitar, vocals (1999)
Steven DeJoseph – drums, percussion (1999–2000)
Antonio Longo – lead vocals (1999–2001)
Fred Mascherino – lead guitar, vocals (2003–07)
Matt Rubano – bass guitar, backing vocals (2003–10)
Matthew Fazzi – lead guitar, keyboards, vocals (2008–10)
Eddie Reyes – rhythm guitar (1999–2018)
Mark O'Connell – drums, percussion (2000–24)