José Christian Chávez Garza (born 7 August 1983) is a Mexican singer and actor. He is best known for his role as Giovanni Méndez López in the telenovela Rebelde, as well as for being a member of the spin-off pop group RBD. José Christian Chávez Garza (born 7 August 1983) is a Mexican singer and actor. He is best known for his role as Giovanni Méndez López in the telenovela Rebelde, as well as for being a member of the spin-off pop group RBD.