Beastie Boys - Licensed To Ill

Starting out as a hardcore rock band in 1979, the New York City based trio who would become known the world over as the Beastie Boys eventually transitioned into the growing genre of hip-hop. DJ-producer Rick Rubin gets a lot of credit as well for his part in putting this debut together.
In 1986, they released their debut album Licensed To Ill which became the first album of the genre to reach number 1 on the Billboard album charts. It was also the record label’s fastest selling debut record, selling over 9 million copies.