William Patrick Corgan Jr. is an American musician, singer-songwriter, and professional wrestling promoter. He is best known as the co-founder, lead guitarist, primary songwriter, singer, and only constant member of alternative rock band the Smashing Pumpkins. Corgan is credited with helping popularize the alternative rock genre. He has also been the owner and promoter of the National Wrestling Alliance since 2017.
Corgan formed the Smashing Pumpkins in Chicago in 1988 alongside guitarist James Iha, with bassist D'arcy Wretzky and drummer Jimmy Chamberlin joining soon after. Strong album sales and large-scale tours propelled the band to commercial success and critical acclaim throughout the 1990s. After their break-up in 2000, Corgan and Chamberlin started a new band called Zwan; after the band's demise, he released the collection of poetry Blinking with Fists (2004) and the solo album TheFutureEmbrace (2005) before reforming Smashing Pumpkins in 2007. The new version of the band, consisting of Corgan and a revolving lineup, has released new albums and toured extensively. In October 2017, Corgan released Ogilala, his first solo album in over a decade.