Penguin! formerly known as Penguin627 is a pop-punk rock band formed on June 27, 2009. Penguin released a self-titled EP under Blaster Music on April 2010. Their single "Make me come back" was played in local radio stations. Due to commercial differences, Kat Castro(vocals/bass) and Marco Ho(drummer) decided to leave Penguin627 and started Penguin! with Bombee Duerme(guitars). Early 2011, Penguin! joined GBOB (Global Battle of the Bands).