Voice: Rosario - Featuring: Vanesa Martín - Producer: José Marín - Producer: Tony Romero - Recording Arranger: José Marín - Recording Arranger: Tony Romero - Programmer: José Marín - Programmer: Tony Romero - Acoustic Guitar: José Marín - Electric Guitar: José Marín - Voices: José Marín - Piano: Tony Romero - Keyboards: Tony Romero - Voices: Tony Romero - Vocal Engineer: Óscar Clavel - Editor: Óscar Clavel - Mixer: Felipe Guevara - Mastering Engineer: Fernando Illán