William Anthony Pisa-Relli (born December 4, 2004), professionally known as boolymon (also known as snakechildpain), is an American recording artist and record producer hailing from Michigan.

Known for his signature sound with hard-hitting 808s, boolymon began producing in 2021, accrediting fellow producer Twovrt to starting his career. In the years following, he would make a name for himself, producing for artists such as Smokingskul, Okaymar, Marrgielaa, and OsamaSon.

boolymon made his debut rapping in October 2023, with the release of his single “dont want smoke” alongside his close collaborator OsamaSon. After his and Osama’s collaboration tapes 2 slime, still slime, and booly’s debut album tony were taken off streaming platforms due to Osama’s label Atlantic Records in November 2024, he made a new page, rebranding under the name snakechildpain—only releasing songs where he raps.

On June 13, 2025, boolymon would release his debut solo project outstanding to critical and fan acclaim, with songs such as “megalodon” and “kookoo” gaining attention through social media.

In August 2025, boolymon would face problems with his music distributor DistroKid, which he used to distribute music independently under snakechildpain. Likely due to controversial and antisemitic lyrics from boolymon, DistroKid removed all of his released music under snakechildpain, which led to outrage on social media. As a result, boolymon would partner with EMPIRE Distribution to release his music, back under the name and artist page “boolymon.”

Entering into 2026, on February 28, boolymon would release his long-awaited album party city, in collaboration with Perubaby.