Clap Your Hands Say Yeah (often abbreviated CYHSY) is the musical project of American indie rock musician Alec Ounsworth. It was founded in 2004 and is based in Philadelphia and Brooklyn. 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.
