Puno died of cardiac arrest, according to his daughter Tosca Camille Puno-Ramos.
The veteran singer underwent open heart surgery in 2015. He underwent an angioplasty last December 2017 and recently got a new pacemaker.
Before his death, Puno shared his excitement to topbill the concert “Sana Tatlo Ang Puso Ko” with comediennes Marissa Sanchez and Giselle Sanchez.
Anna Puno, the singer’s sister-in-law, expressed shock after hearing news of Puno’s death.