William Patrick Corgan Jr. (born March 17, 1967) 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. Considered as one of the finest and most underrated rock guitarists of the 1990s, Rolling Stone called him and his Smashing Pumpkins bandmates "ruthless virtuosos". He has also been the... [more on Wikipedia]