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 Jennifer Lopez Facts Brad Pitt Facts Lady Gaga Facts Dwayne Johnson Facts Tom Cruise Facts Shakira Facts Aaliyah Facts Sylvester Stallone Facts