A rapper is a type of musician which features rhythmic speaking, a complex lyrical structure, and is often accompanied by a beat. Rap is part of the wider Hip Hop genre, which emerged in its current form in New York, USA. It became very popular in the 1980s and 1990s, with rappers such as Tupac and the Notorious B.I.G dominating the scene. More recently, it has been absorbed into more mainstream culture, and rap is now considered one of the most popular and accessible genres of music. Kanye West and Jay-Z who started out in the rap scene, are the of the worlds most successful musicians.