Vocals

Héctor Lavoe

Vocals (tracks 1, 2, 3, 4)

Y

Yayo el Indio

Vocals (track 3)

E

Elliot Romero

Vocals (track 3)

H

Héctor Garrido

Vocals (track 7)

Willie Colón

Background Vocals

J

Jose Mangual, Jr.

Background Vocals (tracks 1, 2, 5, 7)

Johnny Pacheco

Background Vocals (tracks 2, 4)

Justo Betancourt

Background Vocals (track 4)

A

Adrien Albert

Background Vocals (track 5)

D

Demaris Cortez

Background Vocals (track 5)

N

Nestor Sanchez

Background Vocals (track 5)

M

Mariene Verplank

Background Vocals (track 5)

C

Cynthia Colón

Background Vocals (track 5)

A

Ada Chabrier

Background Vocals (track 5)

G

Graciela Carriquí

Background Vocals (track 6)

D

Doris Eugenio

Background Vocals (track 6)

D

Deborah Resto

Background Vocals (track 6)

Y

Yvonne Quiñones

Background Vocals (track 7)

Musicians

Willie Colón

Trumpet

E

Eric Matos

Trombone (tracks 1, 2, 4)

L

Louie Romero

Timbal (tracks 1, 2)

Milton Cardona

Bongos (tracks 1, 2, 4, 6, 7)

J

Jose Mangual, Jr.

Bongos (tracks 1, 2, 5, 7)

S

Santi González

Bass (tracks 1, 2, 4)

J

Joe Torres

Piano (tracks 1, 2, 4, 5)

G

Gene Golden

Percussion (track 2)

J

Joe Santiago

Trombone (track 3)

N

Nick Marrero

Timbal (track 3)

M

Mario Galagarza

Congas (track 3)

P

Pablo Rosario

Bongos (track 3)

D

Dwight Brewster

Piano (track 3)

E

Eddie Guagua

Bass (track 3)

J

James Taylor

Bass (track 3)

J

José Mangual

Bongos (track 4)

L

Louis Romero

Timbal (track 4)

B

Bobby Porcelli

Flute (track 5)

R

Ronnie Cuber

Flute (track 5), Baritone Sax (track 5)

Mayito Rivera

Flute (track 5), Baritone Sax (track 5)

L

Leopoldo Pineda

Trombone (tracks 5, 6, 7)

Angel Papo Vazquez

Trombone (track 5)

S

Sam Burtis

Trombone (tracks 5, 6, 7), Trumpet (tracks 5, 6, 7)

J

John Fartis

Trumpet (track 5)

T

Tony Cofresi

Trumpet (track 5)

L

Luis Perico Ortiz

Trumpet (track 5)

H

Héctor Zarzuela

Trumpet (track 5)

S

Sal Cuevas

Bass (tracks 5, 6, 7)

Eddie Montalvo

Congas (track 5)

J

Jimmy Devliegher Delgado

Timbal (track 5)

Yomo Toro

Guitar (tracks 5, 7)

L

Lewis Kahn

Trombone (tracks 6, 7)

D

Dan Reagan

Trombone (track 6)

J

José Torres

Piano (tracks 6, 7)

J

John Andrews

Drums (track 6)

B

Buddy Williams

Drums (track 6)

P

Paul Kimbarrow

Drums (track 7)

J

Johnny Almendra

Timbal (track 7)

Songwriting & Arrangement

Willie Colón

Composer (tracks 1, 2, 4, 5, 6), Songwriter (tracks 1, 2, 4, 5, 6)

C

C. Concepción

Songwriter (track 3)

H

Héctor Juan Pérez Martínez

Songwriter (track 4)

S

Sylvain Krief

Songwriter (track 6), Composer (track 6)

M

Marty Sheller

Arranger (track 6)

Chico Buarque

Composer (track 7), Songwriter (track 7)

Production

Willie Colón

Producer (tracks 2, 4, 5, 6, 7)

J

Jerry Masucci

Producer (except track 6)

Johnny Pacheco

Producer (tracks 1, 3, 4)

F

Fabián Ross

Co-Producer (track 7)

Engineering

Willie Colón

Recording Engineer (tracks 2, 4, 5, 6, 7)

J

Jerry Masucci

Recording Engineer (except track 6)

Johnny Pacheco

Recording Engineer (tracks 1, 3, 4)

I

Irv Greenbaum

Mastering (tracks 2, 3)

J

Jon Fausty

Engineer (tracks 4, 5, 6, 7)

Miscellaneous