Before Rudy Pérez became a chart-topping, world-renowned songwriter, he was a Cuban refugee and troubled teenager whose crimes landed him in a juvenile detention center in Florida. What transformed his life was returning to the faith of his childhood and keeping a promise he made to God many years ago. 

https://www.christianpost.com/news/iconic-music-producer-rudy-perez-promise-to-god-forever-changed-his-life.html