Effective period / Period of releases: 1998 - 2001

Members: Jorge Montes, Ángel López, Pedro Quiles, Carlos Javier Montes

Son By Four is a salsa music group from Puerto Rico, well known for their English U.S. pop hit "Son By Four - Purest Of Pain (A Puro Dolor)". Standout collaborations with artists such as Jaci Velasquez, Luis Martinez and Lewis A. Martineé, master audio engineer and producer.

Son By Four was created by Panamanian producer/songwriter Omar Alfanno and integrated by Ángel López, Pedro Quiles, and brothers Carlos Javier Montes and Jorge Montes.

The group was signed to Sony Music Entertainment.