Luca Pretolesi Mixing and Mastering Willy William & J Balvin. This tutorial covers Luca's final stem mix and mastering of Willy William "Voodoo Song" which was re-released by J Balvin 1 year later as Mi Gente, and then a 3rd release featuring Beyoncé. The Voodoo Song was originally produced/written by Willy William and mixed by Phil Greiss in 2017 then given to Luca for stem mastering. "Mi Gente" was nominated for a grammy and has become one of the most streamed songs of the decade.