[Cool As Ice Cream]

According to Erlandson, who discussed the recording sessions online in 2005, Love was allegedly "not caring about" playing her instrument during the sessions, focusing only on singing and song-writing. He also confirmed Corgan's involvement in the recording process, and revealed he played bass on "Hit So Hard" and the outtake "Be a Man." Earlier in 2002, Love revealed on the band's official online forum, that Corgan also played bass on "Petals" as Melissa Auf der Maur was unable to play it.

http://en.wikipedia.org/wiki/Celebrity_Skin#Recording