Trio Vegabajeño was a legendary Puerto Rican popular music trio that existed from the 1930s to the 1990s. This group marked an era of popular music in Puerto Rico, when the genre was widespread in the Americas, they were considered the island's best representatives. Vegabajeño is the demonym for people of the town of Vega Baja, where the first version was organized during the 1930s by Fernandito Álvarez, who eventually disbanded the group due to fatigue and personal commitments. In 1943, the Trio Vegabajeño was reformed by Álvarez at the Tortuguero Military Camp of Vega Baja, after he gathered a few co-workers to put together a few musical numbers. Rafael Quiñones Vidal played a role in introducing them to the public by including the group in his radio show. Shortly after they recorded their first song "Llanto de mar". At the time only Álvarez and Benito de Jesus did both vocals and guitar while Octavio González only played guitar. En mi Viejo San Juan was first recorded by El Trio Vagabajeño in 1943 under the label RCA Victor. The song had an immediate impact and many other versions followed. The composition was written by Puerto Rican composer and singer Noel Estrada and has been translated into various languages. The song is "widely known around the world".