Aside from his hit-making albums, Sison also joined popular singers Rico J. Puno, Rey Valera and Nonoy Zuniga, collectively known as the Hitmakers.
Zúñiga | Hernaldo Zúñiga | Francisco Zúñiga | Fernando Zúñiga | Diego Ortiz de Zúñiga | Zuñiga | Nonoy Zuniga | Manuel de Acevedo y Zúñiga |