Tremendo (Eduardo López Guerrero), aka Tremendo Menda, is a Spanish emcee born in Terrassa, Barcelona. He belongs to the Barcelona collective Funkomuna. In 1991, he would assiduously go to clubs like Crom in Terrassa or Soweto in Barcelona. It was there he met artists Juan Solo and DJ Griffi, members of hip-hop group Solo los Solo. During the 90s, he starts Factor Bass with his friend Giro, and begins composing his own lyrics. At first, they would meet and rap at a bar in Rubí called El Dorado.