Producer: Carlos Narea - Artist: Los Secretos - Mixer: Ángel Martos - Artist: David Summers - Mixer: Carlos Narea - Mastering Engineer: Ángel Martos - Recording Engineer: José María Rosillo - Additional Engineer: Deme Gómez - Electric Guitar: Álvaro Urquijo - Voice: Álvaro Urquijo - Electric Guitar: Ramon Arroyo - Piano: Jesús Redondo - Keyboards: Jesús Redondo - Organ: Jesús Redondo - Voices: Jesús Redondo - Drums: Santi Fernández - Bass Guitar: Juanjo Ramos - Voices: Juanjo Ramos - Acoustic Guitar: Txetxu Altube - Voices: Txetxu Altube - Voice: David Summers