Clap Your Hands Say Yeah is an indie rock band active since the early 2000s in and out of Philadelphia. The band was founded as a collaboration between singer-songwriter Alec Ounsworth, Sean Greenhalgh, Robbie Guertin, Lee Sargent, and Tyler Sargent. Ounsworth now performs under the name, as a solo artist. Clap Your Hands Say Yeah has released a total of six albums. Their self-titled debut album appeared in 2005 and their most recent, New Fragility, in 2021.