Madrid-based rapper Rayden (born David Martínez Álvarez) was part of A3Bandas and Crew Cuervos, groups that released a combined total of eight albums from 2003 through 2012. A regular participant at Red Bull's Batalla de los Gallos competitions, he took the title in 2006. Signed to the Boa Music label, he released the solo albums Estaba Escrito (2010) and Mosaico (2012) and the double LP En Alma y Hueso (2014). Álvarez published a book the following year titled Herido Diario, which included lyrics from his songs. A book of poetry followed the next year before the release of his fourth solo LP, Antónimo (Warner Music, 2017). ~ Andy Kellman