Billy Corgan

The Smashing Pumpkins frontman destroyed his health, relationships and almost his life while creating the 1993 album.

"When it's all said and done, I want the Pumpkins standing on the top of the heap of our generation," bandleader said.

See how Corgan viewed the late singer.

The FBI even had to get involved.

Alanis Morissette also paid tribute to the late singer, who died earlier this month.