2 Live Crew was a hippity-hop/rap group that was semi-popular for a brief time in the late 80′s/early 90′s.

They were mostly notorious for extraordinarily obscene lyrics. So obscene that several employees of record stores were arrested for selling the record.

Some 2 Live Crew trivia:

• At least 3 different record store employees were arrested for selling 2 Live Crew records. Two for selling to undercover cops, and one for selling obscene items to a minor (a 14 year old girl). No one served time. All were acquitted or had the charges dropped.
• 2 Live Crew was sued more than a few times. George Lucas sued over one of the performers using the stage name Luke Skyywalker. Van Halen sued over unauthorized sampling of a song.
• The highest profile lawsuit was vs. Roy Orbison. The Crew ripped off a bunch of the song Oh, Pretty Woman for what they claimed was a parody. The suit went to the Supreme Court, where 2 Live Crew was ultimately victorious.
• Tom got in trouble when he was about 8 years old for singing the lyrics to the 2 Live Crew classic Me So Horny.
• When I was in Germany, a group of the people I spent time with were huge 2 Live Crew fans. They liked the sound of the music and the bass. They didn’t understand the words. I explained the lyrics. They only liked the music more after that.

Source: wiki