William Ryan Key (born December 17, 1979) is an American singer, songwriter, and musician. He is best known as the lead vocalist and rhythm guitarist of the pop punk band Yellowcard. He is the owner/operator of a recording studio in Jacksonville, Florida, called The Lone Tree Recordings. He is currently writing music under his full name, William Ryan Key, as a solo acoustic act and electronic act. He is also one half of JEDHA, an electronic duo consisting of himself and lead guitarist of Yellowcard, Ryan Mendez. He has recently toured as guitarist/vocalist/keyboardist for New Found Glory. In late 2018, he played as a supporting act on Mayday Parade's Sunnyland tour along with This Wild Life. During 2021, he live-streamed his songwriting process on Twitch full-time.