Santiago Marín Villa, known professionally as Métricas Frías and Sadman, was a
Colombian rapper born on July 22, 1994, in Envigado. He began his music career
in 2010 as a freestyler, participating in local rap battles. In 2011, he formed
the group Doble Porción with Mañas Ru-Fino, releasing their debut album El
abrebocas in 2012. The group was part of the Moebiuz collective, which
significantly influenced Colombian rap during the mid-2010s. Métricas Frías
launched his solo career with the LP Serenata sin mariachis in 2016 and released
several albums including Después de muertos (...