Hip hop as a culture involves the music as well as a style of dressing called "urban" clothes (baggy pants, Timberland leather work boots, and oversize shirts); a dancing style called breakdancing or "B-boying"; and graffiti, a street art in which people paint pictures or words on walls. In the 2000s, hip hop music and hip hop culture are very popular in the United States and Canada. Hip hop musicians usually use nicknames. Many of the popular hip hop musicians from the 2000s use nicknames, such as Snoop Dogg, Jay-Z, Eminem, Lil' Wayne, and 50 Cent. Cities that produce the most hip hop are New York City, Chicago, Atlanta, Miami, New Orleans, Philadelphia, Detroit, Los Angeles, Houston and Memphis. Hip hop is sometimes fused with other genres such as country music and rock music.