Tego Calderón – The Underdog / El Subestimado

Mixed By – Gary Noble
Producer, Recorded By – Parallaxt3s
Producer, Written-By – Edu Lobo
Written-By – Daniel Cruz (4)

Mixed By, Producer – Naldo
Producer, Recorded By – Nesty
Written-By – Roberto Cantoral
Written-By – Ernesto Padilla
Written-By – Antonio Cantoral

Mixed By – Gary Noble
Producer, Recorded By, Written-By – Danny Fornaris

Mixed By – Gary Noble
Producer – Major League (5)
Recorded By – Corey Jackson Hill
Written-By – Corey Jackson Hill
Written-By – Domingo Ramos

Mixed By, Recorded By – Naldo
Producer – Nesty
Written-By – Ernesto Padilla

Producer – Echo & Diesel
Written-By – Eddie Dee
Written-By – Julio Voltio

Featuring – Eddie Dee
Featuring – Julio Voltio
Keyboards, Written-By – Salaam Remi
Mixed By – Gary Noble
Producer – Salaam Remi
Recorded By – Franklin Socorro
Written-By – Herbie Hancock

Mixed By – DJ Fat (2)
Mixed By, Producer, Recorded By – DJ Joe (7)
Written-By – Joselly Rosario

Bongos – Carlos Pabón
Congas, Timbales – Roberto Quintero
Featuring, Written-By – Oscar D' León
Mixed By, Recorded By – Marioso
Piano – Desmal Guevarra
Producer – DJ Nelson (4)
Trombone – Ozzie Melendez
Written-By – Nelson Díaz

Backing Vocals [Background Vocals] – Marger Sealey
Featuring – Don Omar
Guitar – Fernando Perdomo
Mixed By – Gary Noble
Producer – Major League (5)
Recorded By – Corey Jackson Hill
Written-By – James Chambers (2)
Written-By – Corey Jackson Hill
Written-By – William Landron
Written-By – Domingo Ramos

Engineer [Assistant] – Frank "El Medico" Rodriguez
Engineer [Assistant], Recorded By – Jesús García
Mixed By – Echo
Producer – Echo & Diesel
Recorded By, Written-By – Paul Irizarry
Written-By – Armando Rosario

Mixed By, Producer – DJ Nelson (4)
Recorded By – Marioso
Written-By – Nelson Díaz

Mixed By, Producer – DJ Nelson (4)
Recorded By – Marioso
Written-By – Nelson Díaz

Percussion, Vocals [Rumba] – Alfredo Hernandez

Arranged By, Piano, Producer – Eric Figueroa (2)
Bass – John Benitez
Bongos – Luisito Quintero
Congas – Richie Flores
Coro – Cano Estremera
Coro – Ray De La Paz
Coro – Rafael de Jesus
Flute – Dave Valentin
Guiro [Güiro], Recorded By – Carlos Rodriguez (7)
Guiro [Güiro], Recorded By – Carlos Rodríguez (3)
Guitar – Octavio Kotan
Maracas – Eddie Temporal
Mixed By – Jesus "Papo" Sanchez
Other [Assisted By] – Micheal Peters
Other [Attendee] – George Rivera
Timbales – Endel Dueño
Trombone – Reynaldo Jorge
Trombone – Papo Vázquez
Written-By – Luis López Cabán

Mixed By, Recorded By – Gary Noble
Producer – Major League (5)
Written-By – Corey Jackson Hill
Written-By – George Johnson
Written-By – Louis Johnson
Written-By – Siedah Garrett
Written-By – Domingo Ramos

Featuring – Yandel
Mixed By, Producer, Recorded By, Written-By – Víctor Cabrera
Mixed By, Producer, Recorded By, Written-By – Francisco Saldaña

Mixed By – Gary Noble
Producer – Echo & Diesel
Recorded By, Written-By – Paul Irizarry
Written-By – Diesel

Performer – Tego Calderón
Performer – Bataklán

Bongos, Cajón, Congas, Producer – Tego Calderón
Drum Programming, Recorded By – Corey Jackson Hill
Keyboards, Timbales – Domingo Ramos
Mixed By – Gary Noble
Trumpet – José Sibaja

Featuring – Buju Banton
Performer [Musician] – Kevin Wright
Performer [Musician], Producer, Recorded By – Troyton Rami
Written-By – Mark Myrie
Written-By – Troyton Rami

Mixed By – Gary Noble
Performer [Musician], Producer – Coo-Kee
Written-By – Victor Garay

Featuring [Special Appearance] – Chyno Nyno
Mixed By – Gary Noble
Producer – Major League (5)
Recorded By – Corey Jackson Hill
Written-By – Corey Jackson Hill
Written-By – Andre Rodriguez (2)
Written-By – Domingo Ramos