Alejandro Gustavo Sergi Galante is an Argentine singer, songwriter and producer. He rose to fame as a member of the electropop band Miranda!, alongside Juliana Gattas.

Miranda! is an Argentine electropop band formed in Buenos Aires in 2001. Original band members include Alejandro Sergi, Juliana Gattas, Lolo Fuentes (guitar), Bruno de Vincenti (programming), and Nicolás Grimaldi (bass). It is currently a duo between Sergi and Gattas.