OK Go is a rock band originally from Chicago, Illinois, USA, now residing in Los Angeles, USA. The band is composed of Damian Kulash (lead vocals and guitar), Tim Nordwind (bass guitar and vocals), Dan Konopka (drums and percussion) and Andy Ross (guitar, keyboards and vocals), who joined them in 2005, replacing Andy Duncan. They are perhaps best known for their often elaborate and quirky music videos.
The original members formed as OK Go in 1998 and released two studio albums before Duncan's departure. The band's video for "Here It Goes Again" won a Grammy Award for "Best Short-Form Music Video" in 2007.