Walfredo Reyes Jr. is a Cuban American musician who is an expert in drum set and auxiliary percussion, and a music educator and clinician. He has performed with many jazz, Latin, World music, World fusion, Afro-Cuban, and rock bands as a touring, session recording, and full-time player/performer. Reyes is known for his fusion of many of the world's percussion techniques, including the ability to play a drum set with his hands in addition to the traditional use of drumsticks; it was said that he can "sound like a drummer and a percussionist at the same time" He was a long-term member of Santana. He was also a member of Chicago as the percussionist from 2012 to 2018, at which point he took over the drum seat. He also performed in the band of former Nazareth guitarist Manny Charlton.

Manuel Charlton was a Scottish musician and record producer, who was known as a founding member of the influential Scottish hard rock band Nazareth and was their lead guitarist from 1968 to 1990. He also produced a string of successful Nazareth albums in the 1970's, including the seminal album "Hair of the Dog" (1975).