Reggaeton in Dominican Republic became very popular very fast. The genre is Puerto Rico based but really originated in Panama (El General was one of the originals).
The beat is sort of a down, down, up close to the reggae beat.
It is Latin rap with a dance hall beat. Reggaeton is a mix of Hip-Hop and Reggae with a little Bachata, Merengue and other Latin rhythms thrown in to make a unique sound. The Boricuas have made this style of music their own.
Still, out of Dominican Republic has come some of the most popular bands.
This style of music is quite contagious. Most of the lyrics refer to women or somethings not very nice. They contain much slang and Spanglish (English and Spanish mixed). Even if, at first, you do not like this type of music you will catch yourself singing along with it even if you won't admit to it. Usually people either like this style or hate it, there is no in between. You may not want to admit to singing "Dame la Gasolina" but you know that you have sung it to yourself after you heard the song in the streets.