He grouped with amateur accordion player Ramón López and after performing in some parties and gigs they recorded their first album in 2002 called Tanto para Tí which included 12 songs; Nada te conmueve composed by Fabian Corrales, Necesito verte by Juan Manuel Perez, No te escondas mas by Felipe Pelaez, Mi encantadora egoista by Alberto Murgas, Quien me mando of his own authorship, Un amor tan grande by Freddy Carrillo, Muñeca de porcelana by Luis Alonso, Que no me roben tu corazón by Antonio Meriño, Lloraras un amor by Jaime Bayona, La flor mas linda by Armando Moscote, El extorcionista by Carlos Ramirez and Tanto para ti by Freddy Carrillo.

Blum then convinced them to become a musical duo and arranged their first gig together at the Alfonso López Michelsen Building in a celebration of the Cesar Department foundation.

Lo mejor para los dos (The best for the two of us – Album) Their musical union created great buzz within the vallenato critics and fans, and shortly they recorded their first album together named titled Lo mejor para los dos (2003) containing 13 tracks; La pinta chevere of Dangond's authorship, Nuestra vida by Jose Hernandez, Detalles y recuerdos by Enrique Carrascal, Mi amor por ella by Omar Geles, Ni en pintura by Dagoberto Osorio, El ring ring by Luis Alonso, Sabroso by Hernando Marin, Dejame quererte by Alejandro Sarmiento, No se, me equivoque by Rafael Manjarrez, La razon de mi vivir by Ivan Calderon, El chinchorrito by Alejo Duran, Me vuelve loquito by Josue Rodriguez and Lo mejor para los dos by Kaleth Morales.

[1] Mas unidos que nunca (More united than ever – Album) Their following album was Mas unidos que nunca, released on June 13, 2004, containing 14 songs which included one unplugged bonus track; Cautico mi canto of Dangond's authorship, El vaiven by Hernando Bustos, A blanco y negro by Omar Geles, La Colegiala of Dangond's authorship, Yo no me como ese cuento by Dagoberto Osorio, Acepto el reto by Luis Egurrola, Pa Barranquilla of Dangond's authorship, Me la juego toda by Kaleth Morales, Baila Vallenato by Leo Duran, La Mentira by Wilfran Castillo, Cuando llego en temple by Armando Romero, Celos y que by Luis Alonso, La mujer de mis sueños by Unknown author and La colegiala unplugged version.

The Album included the songs; Ahi viene ahi va of Dangond's authorship, Pa una mujer bonita by Omar Geles, Dile by Alberto Mercado, El tao tao by Lucho Perez, Mi seguidora y yo by Kaleth Morales, Esa mirada by Enrique Araujo, La pareja del momento by Jeiner Lopez, La misteriosa by Isaac Calvo, Ponte a la moda by Luis Alonso, Silvetre en Carnaval by Various artists, Una vez mas by Luis Egurrola, El enredo by Manuel Julian, Por ser machista of Dangond's authorship and La indiferencia (live unplugged) by Luis Alonso.