Tegui Calderón Rosario (born February 1, 1972 in Santurce, Puerto Rico) is a rapper. He is best known as Tego Calderon. He not only records hip hop music music but also mambo,salsa, and reggaeton. His album El Abayarde made him a major Latin star. His lyrics speak of the struggles of the Puerto Rican people, involve topics of racism, inequalities, and ghettos in Puerto Rico, and have strong nationalist undertones. In the summer of 2005, Calderón signed a deal between Atlantic Records and his own independent label, Jiggiri Records, making him the first reggaeton artist to have a deal with a major record company. His first album under the deal is titled "The Underdog" (El Subestimado) which was released on August 29th, 2006.