Censorship in music is often justified as a means to protect public morals and prevent the spread of harmful ideas.

The First Amendment to the United States Constitution protects freedom of speech, which includes freedom of expression in music.

The National Coalition Against Censorship (NCAC) is a non-profit organization that advocates for freedom of expression in music and other forms of media.

The Kingsmen were arrested for obscenity in 1965 due to the lyrics of their song "Louie Louie".

Frank Zappa's album "We're Only in It for the Money" was banned in New Zealand in 1969 due to its controversial lyrics.

John Lennon was denied entry into the United States in 1972 due to his political views.

N.W.A's song "Fuck tha Police" was banned by several radio stations in the United States in 1989 due to its controversial lyrics.

Madonna was arrested in Singapore in 1994 for performing a song that was deemed to be "obscene".

Eminem's album "The Marshall Mathers LP" was banned in several countries in 2000 due to its controversial lyrics.

Snoop Dogg was denied entry into the United Kingdom in 2003 due to his criminal record.

Lady Gaga's song "Born This Way" was banned by the Chinese government in 2011 due to its controversial lyrics.

Pussy Riot was arrested in Russia in 2012 for performing a song that was deemed to be "offensive to religious believers".

Kendrick Lamar's song "Alright" was banned by several radio stations in the United States in 2015 due to its controversial lyrics.

Yasiin Bey (formerly known as Mos Def) was denied entry into the United States in 2017 due to his political views.