Tainy - Wikipedia en.wikipedia.org/wiki/TainyPrivate View Tainy. Marcos Efraín Masís Fernández (born August 9, 1989), known professionally as Tainy, is a Puerto Rican record producer and songwriter. Born and raised in San Juan, Puerto Rico, he entered the world of reggaeton with his work on Mas Flow 2 . Leading a new wave of Latin music for over a decade, Tainy has been the producer of some of the ...