R.K.M & Ken-Y组合中的R.K.M，波多黎各的雷鬼歌手\r Jose Nieves ( RKM ) , both of Gurabo, Puerto Rico , is a Puerto Rican reggaeton duo singing . With only two years of experience , we have become one of the most important duos in reggaeton, with their albums Masterpiece, which has sold over 10 million copies worldwide , by December of that same year they released their first cd / Dvd Masterpiece : World Tour which sold 1.5 million copies worldwide ( in the usa sold 500,000 copies) and their latest album the Commemorative Edition which has so far sold over 5 million copies worldwide . according to the letter of the year with their unit albumnes Alado have already sold over 17 million copies mundialmente.Por far are in the production of his new album the Royalties which will be released in 2008 , after last 1 year without this will be an album and it is expected to be well successful .