Training: Gerónimo started his singing career at the Piannissimo Music Academy in Argentina with Maestro Cristián Bruno. He continued his training with Maestro Rodolfo Valss. In 2009 he met Suso Mariategui and Maestro Edelmiro Arnaltes and started training in classical singing and repertoire.
Theatre includes: most recently, finishing an almost three-year run playing Jean Valjean in Les Misérables at the Queen’s Theatre and in the Spanish version Los Misérables (Madrid and Barcelona). Also, Mary Sunshine in Chicago, Jesus in Jesus Christ Superstar (Spain and Argentina), Doody in Grease and Feuilly in Les Misérables. In 2011 Gerónimo won the Best Leading Male Performance Award in the Premios del Teatro Musical for Jean Valjean and also the Broadway World Spain Awards.
Concerts include: Placido Domingo’s 70th Anniversary Concert and he made his classical debut in December 2011 at the Spanish National Auditorium.
Other work includes: In 2002 he won Popstars in Argentina and then recorded three multiple-platinum CDs with his group Mambrú. Mambrú won the Best Pop Group and Best New Band Gardel Award, Best Pop Band INTE Award and a Martin Fierro Award.