Clap Your Hands Say Yeah

Clap Your Hands Say Yeah (often abbreviated CYHSY) is the musical project of American indie rock musician Alec Ounsworth; based in Philadelphia, Pennsylvania and founded in 2004. Until 2014, the project operated as a band; with drummer Sean Greenhalgh being a member for its entirety. Keyboardist/guitarist Robbie Guertin and brothers Lee (guitar/vocals) and Tyler (bass) Sargent were also a part of the band from its inception until their collective departure in 2012. Their debut album, Clap Your Hands Say Yeah, was self-released in 2005.