Tom Morello, guitarist of Rage Against The Machine, some rather harsh words for Rush Limbaugh on Thursday.

Morello told Rolling Stone magazine that he heard his band's song "Sleep Now in the Fire" on Limbaugh's radio program earlier that day. "Our response," he told the Rolling Stone, "Hey Jackass, stop using our music on your racist, misogynist, right wing clown show." He later tweeted the sentiment.

Morello is not the first musician to publicly speak out against Limbaugh for using music on air since he sparked outrage by making a series of incendiary statements about Georgetown University law student, Sandra Fluke. Last week, Peter Gabriel also moved to remove his work from Limbaugh's program, after he learned that his song "Sledgehammer" was played as Limbaugh launched his attack on Fluke by calling her a "slut" and "prostitute."

Limbaugh, whose attack on Fluke ran the course of three days, has since apologized to Fluke. Despite his apology, nearly 50 advertisers have pulled their content from his program, and two radio stations have dropped his show. Limbaugh has taken considerable time this week to defend himself and assure his audience that his show is doing well.