Megarex is a Brazilian rock group formed by Flavio Marchesin, also known as Conde Flávio de Marchesã, (vocals, bass and keyboards), Marco Camarano (guitar) and Paulinho Barizon (drums). The group was composed in São Paulo in 2000's and it presents a fusion of rock and roll and Brazilian rhythms. It also uses to add to its songs classical instruments, such as violin, creating a kind of alternative rock. The band also uses to compose humoristic lyrics. All these mixes contributes for the group becomes famous as creator of a new style of music.