Classic hip-hop is a music radio format focusing primarily on hip-hop music from the 1980s, 1990s, and the early to mid-2000s. Although stations with such a format date back as far as 2004, the format was first popularized in October 2014, after Radio One dropped a poorly performing news radio format from its Houston station KROI in favor of classic hip-hop. After attracting a dramatic increase in ratings, Radio One began to emulate the station's format and branding in other markets. At the same time, other major radio broadcasters began to introduce classic hip-hop stations in selected markets.