Juan Calleros was born on April 19, 1962, in Guadalajara, Mexico. He began playing in a group at age 13. He always heard a lot of music and because of that he had the desire to play in a band. Along with Fher Olvera and his brother Ulises and Abraham, Juan was part of Sombrero Verde which at some point transformed to Maná. He has been an active member of Maná eversince along with Fher, Alex González and Sergio Vallín.