Dionis K Da Uno, stage name of Dionis Rivas, is a Dominican merengue singer born in Santo Domingo and based in the United States. He describes his style as merengue romántico urbano. He began studying piano and music theory at eleven at the Conservatorio Nacional de Música; he later wrote and arranged songs for his own orchestra.

The early orchestra years

Before his own releases, Rivas worked with several merengue orchestras. A 2019 interview in Barranquilla associated his voice with «Besos robados» from the production «La Vaca» and reported that he was promoting «A su manera» from a 22-song project.

The Colombia breakthrough

His documented singles begin in 2019 with «No Te Puedo Ver», but the record that changed his scale came in 2020: «Te Falta el Amor», his own composition, recorded with Ramón Orlando — the maestro himself as guest — with arrangements by Moisés Sánchez. The song opened Colombia to him, and Colombia answered with the genre's hardest jury: at the Festival de Orquestas of the Carnaval de Barranquilla he won the Congo de Oro in 2022, and won it again in 2024. The same years filled his album «INÉDITOS», released on his own K-DA UNO Music label, which collects the era: «Te Falta el Amor», «Mendigo de Amor», a «Baile en la Calle» with Ramón Orlando billed as a tribute to Cuco Valoy, and a merengue version of «Color Esperanza» recorded with Sin Fronteras.

Silvio Mora and the Christmas single

Dominican audiences met him in part through the collaboration that closed 2022: «Vamos a Hacer Un Can», his own composition, re-cut as a Christmas version with Silvio Mora as featured guest — the host whose channel had introduced him to the diaspora audience that now follows him.

The bachata turn

In 2025 he turned toward bachata. «Desde Hoy», written and arranged by Francis Bencosme, charted in Colombia, and «Páginas del Alma» — released as a single in November 2025 — became his signature song in the genre, with his own chart posts placing it at number one on Dominican radio for three consecutive weeks in 2026. A singer who won Barranquilla twice with merengue was suddenly competing, in bachata, with the biggest names of the moment.

Legacy

Dionis K Da Uno developed his merengue career from the United States, released music under K-DA UNO Music and won the Congo de Oro at Barranquilla's Festival de Orquestas in 2022 and 2024. In 2025 he added bachata releases including «Desde Hoy» and «Páginas del Alma».