Vocals

Héctor Lavoe

Vocals

Willie Colón

Background Vocals

Milton Cardona

Background Vocals (except track 7)

Musicians

Willie Colón

Trombone

Eddie Montalvo

Congas

E

Edgardo Reyes

Timbal

J

José Mangual

Bongos

L

Luis Mangual

Bongos

D

Danny Rosado

Bass

E

Eddie Rivera

Bass

J

Joe Torres

Piano

G

Gilberto 'Pulpo' Colón

Piano, Keyboard

R

Ray Maldonado

Trumpet

P

Pedro “Puchi” Boulong

Trumpet

H

Harry D'Aguiar

Trombone

Papo Vazquez

Trombone

Songwriting & Arrangement

Héctor Lavoe

Arranger (track 4)

J

Jose Febles

Arranger (tracks 1, 5, 6, 7)

Tito Rodríguez

Songwriter (track 1), Composer (track 1)

L

Luis Marquetti

Songwriter (track 2)

B

B.E.R.T

Arranger (track 2)

A

Armando Dwolff

Songwriter (track 3)

J

Jose Madera

Arranger (track 3)

H

Héctor Juan Pérez Martínez

Songwriter (track 4)

R

Raul Rene Rosado

Songwriter (track 5)

Lee Morgan

Composer (track 7)

Production

Willie Colón

Producer

J

Jerry Masucci

Executive Producer

Engineering

Miscellaneous