OK Go

OK Go is an American alternative rock band originally from Chicago, Illinois, but now residing in Los Angeles, California. The band is composed of Damian Kulash (lead vocals, 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 known for their often elaborate and quirky music videos.

source: Wikipedia