Psapp is an experimental electronica band. The band, a duo consisting of members Carim Clasmann and Galia Durant, are sometimes credited with inventing a musical style known as toytronica, a form of electronica made with toys and toy instruments (the band uses toy guitars, flutes, and a chicken they named Brunhilda). They have released three albums (Northdown, Tiger, My Friend and The Only Thing I Ever Wanted) and four EPs (Do Something Wrong, Rear Moth, Buttons and War and the iTunes‑exclusive Early Cats and Tracks). They composed the song Cosy in the Rocket, the main theme on the hit medical‑drama TV series Grey's Anatomy. Some of their other songs have been used in other hit American TV shows such as The OC and Nip/Tuck as well as the UK Channel 4 TV show Sugar Rush.