There is more than one artist with this name.
1. Muro is a heavy metal group formed in 1984 in Vallecas, Madrid, Spain. Their debut album, Acero Y Sangre, was recorded live in December 1986, and the album was responsible for introducing the speed metal genre in Spain.
Between "classic" heavy metal and thrash metal, exploring both genres, Muro expanded this style of heavy metal in Spain. Unlike pure thrash metal bands, Muro was more heavy and melancholic, and their musical influences come from from the furious guitar riffs of Judas Priest, Motorhead and Accept, which added to the base passionate vocals stylistically similar to those of Manowar and Baron Rojo. In addition, it is distinguished by the very peculiar form of singing with Silver, his vocalist.
2. Muro (DJ Muro) (ディージェイ ムロ Diijei Muro?) is an active Japanese hip hop producer and DJ. His real name is Takayoshi Murota. In 1987 DJ Krush, Muro, TWIGY and others formed the "KRUSH POSSE", a crew of rappers and Dj's. During this time he excelled at DJing hip-hop and began producing hip-hop beats. His solo debut appeared 1993. In the mid 90's Twigy formed the legendary group Microphone Pager along with Muro(a.k.a. the King Of Diggin') which laid the foundation of Japanese rap and released countless Japanese hiphop classics. In the late 1990s he worked extensively with Nitro Microphone Underground, one of Japan's most successful hip-hop crews. In addition to producing he also was active as a designer.