Fermín IV Caballero Elizondo (born December 1974) is a Mexican rapper and pastor, better known as a former part of the Mexican hip hop group Control Machete.
As part of Control Machete, he obtained in 2000 a Latin Grammy Award nomination for "Sí señor" as "Best Rock Song", a platinum RIAA certification for the album "Mucho Barato", and later as a solo artist, he has been a winner twice in the Arpa Awards of 2003 and 2018 as "Best Urban Album".