Sergio Pascual Vargas Parra is a performer of merengue and bolero, who was very popular in the 80s and 90s, during the "Golden Age of Merengue" and today remains active as one of the leading figures in Dominican merengue. His brothers, Kaki and Johnny, are also performers of the genre and have been by his side for much of their respective musical careers.
Vargas was a deputy for the Dominican Liberation Party representing his people Villa Altagracia in the period 2006-2010.