Hip-hop is one of the most popular music genres in the United States, and it has also achieved popularity and influence around the world. Readers uncover the roots of hip-hop in this age-appropriate guide to a style of music that has left--and continues to leave--its mark on the cultural landscape. The accessible text describes the history of hip-hop and outlines how this genre has grown into what it is today. In addition, colorful photographs and short biographies highlight some of the brightest stars of hip-hop.