Some 20 years ago, the mighty Smashing Pumpkins were one of the reigning titans of Alternative Rock. Most rock-oriented people are familiar with their big hits (“1979,” “Disarm,” “Ava Adore,” etc.) and their corresponding music videos from those eras. As the years have gone on, the band has morphed from being about four distinct personalities into being centered on co-founder, William Patrick Corgan aka Billy aka Bolly. Along the way, he’s befriended quite an interesting menagerie of people.