The Underdog/El Subestimado is the second studio album by Tego Calderón on August 29, 2006. The first single of the album was titled "Los Maté" ("I Killed Them"), which has garnered much air-play on the radio. During a press conference in Puerto Rico, Tego Calderón expressed that this new album is "a diary of sorts from my experiences. There are happy moments and sad ones". The album debut at 43 on Billboard 200 and at the Top of Us Latin Rhythm Album Chart. As of 2011, it sold 99,000 units in the United States.