Mariano O'tero [Edit] By Sticky Facts Editorial StaffMariano O'tero biography, ethnicity, religion, interesting facts, favorites, family, updates, childhood facts, information and more:Mariano O'tero nickname(s):Mariano OteroWhat is Mariano O'tero nationality?ArgentineanWhat is Mariano O'tero's occupation?Musician Tags: argentineanmusician Suggested Posts Adele Facts Kit Harington Facts Aaliyah Facts Justin Bieber Facts Mila Kunis Facts Beyoncé Knowles Facts David Beckham Facts Adam Sandler Facts