Hayley Nichole Williams (born December 27, 1988) is an American singer, songwriter, musician, and businesswoman who is best known as the lead vocalist, primary songwriter, and keyboardist of the rock band Paramore. In 2004, she formed Paramore alongside Josh Farro, Zac Farro, and Jeremy Davis.

The band currently consists of Hayley Williams, Zac Farro and Taylor York. The band has released five studio albums: All We Know Is Falling (2005), Riot! (2007), Brand New Eyes (2009), Paramore (2013), and After Laughter (2017). Williams recorded the song "Teenagers" for the soundtrack of Jennifer's Body (2009) and has collaborated with artists such as October Fall, The Chariot, Set Your Goals, Zedd and New Found Glory.