 The lead singer was kept secret until 2007 when they announced that Luis Sanguinetti was the new lead singer and they were working on an EP entitled "Histeria".Luis Sanguinetti is known for being the bassist for Leusemia for 8 years, and for his public fight with Leusemia's lead singer Daniel F. In December 2007 they released Histeria EP; it was one of the best-selling records in Peru during 2007.They released the singles "Histeria" and "Cielo/Infierno".