This week, 8,000 K-pop fans signed an online petition calling for YG Entertainment to censor the 2NE1 song "MTBD" for using a sample of a reading from the Quran.

Yet, pop music is no stranger to controversy. Here are the top five most controversial songs ever released in the US.

Body Count – "Cop Killer"

Fronted by Ice-T, this rap-metal track created such controversy that former President George W. Bush even reacted to the release. Eventually, Ice-T himself withdrew the track from the Boyd Count album, which was re-released without "Cop Killer."

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Cannibal Corpse – "Entrails"

Full title being "Entails Ripped from a Virgin's C*nt," the infamous Florid-based death metal band definitely takes the "most offensive song title" award.

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Rage Against the Machine – "Killing in the Name"

Released six months after the Los Angeles Riots instigated by Rodney King beating, this politically charged track uses the F-word 17 times to address institutional racism and police brutality.

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Guns N' Roses – "One in a Million"

Penned by Guns N' Roses singer Axl Rose after allegedly being hustled on a Greyhound bus, "One in a Million" has been accused to being homophobic and racist. The track also produced negative reactions for using the N-word.

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Eminem – "Kim"

The controversial song depicts iconic rapper murdering his then wife, Kim Mathers. Famously, Mathers was in attendance during a live performance of the song, and upon seeing its positive reception, unsuccessfully attempted suicide.

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