Hip-hop is one of the most popular music genres, though some aggressive subgenres like gangsta rap receive criticism. While hip-hop often involves rap, rap is not required, and many hip-hop artists have been influential without rapping. Hip-hop typically uses rhythmic beats and samples created into a recurring beat for singing or rapping along. Popular artists in the genre include Eminem, Lil Wayne, Kanye West, and The Lonely Island comedy group. Most hip-hop artists present themselves wearing baggy, street-inspired clothing, though there are exceptions.