Latin Rhythm Airplay is an airplay-only chart published weekly by Billboard that ranks the most popular songs being played on Hispanic rhythmic/hurban radio stations in the United States. The music typically heard on these stations include reggaeton, Hispanic R&B and hip hop, rhythmic pop/dance, and crossovers from English-language and/or bilingual acts. The chart was introduced the week of August 13, 2005, and came about as a result of radio stations tapping into the growing second and third generation Hispanic audience who wanted a Spanish-speaking or bilingual alternative to the (English-language mainstream, rhythmic, and R&B/hip-hop) formats that they felt would represent them. "Lo Que Pasó, Pasó" by Daddy Yankee was the first number-one song on the chart. With the issue dated January