[3][4] In 1989, Woolley joined the Chicago-based band Die Warzau, where he played with future Nine Inch Nails-bandmate Chris Vrenna, and contributed to their 1991 album Big Electric Metal Bass Face.

[5] In 1994, Woolley participated in the band's Self Destruct tour, before leaving the line-up in December of that year due to family reasons.

[7] In 1997, he appeared in the Nine Inch Nail video album Closure, featuring footage from their Self Destruct tour.

[9] After 2wo, Woolley did studio work in Los Angeles, including contributions to albums by Leah Andreone and Ednita Nazario.

[2] Reznor thanked Woolley for his contributions to Nine Inch Nails during the band's Rock And Roll Hall of Fame induction speech in 2020.