William Ryan Key (born December 17, 1979) is an American rock musician. He is best known as the former lead singer, songwriter, and rhythm guitarist of the former pop punk musical group Yellowcard. He is currently the owner/operator of a recording studio in Franklin, Tennessee, called The Lone Tree Recordings. He is currently touring and writing music under his full name, William Ryan Key, as a solo acoustic act. He is also currently the touring guitarist/vocalist/keyboardist for New Found Glory.