José Nieves (R.K.M) and Kenny Vasquez (Ken-Y), both of Gurabo, Puerto Rico, are a Grammy Award-nominated reggaeton duo.R.K.M provides rapping verses for many songs while Ken-Y provides the vocal lyrics. R.K.M tends to have fast, upbeat verses while Ken-Y sings many hooks. They are similar to the methods of many other reggaeton artists such as Alexis y Fido (El Rey Del Perreo) and Wisin & Yandel.

Rakim Y Keny released the following albums including Masterpiece (2007)