Josep Miquel Arenas Beltrán (born 18 December 1993), popularly known as Valtònyc, is a Spanish rapper, originally from Mallorca, Spain.
His lyrics are based on a communist, anti-capitalist Republican and anti-fascist ideology. He was arrested on 23 August 2012 when he was 18 . In February 2018, the Spanish Supreme Court confirmed his sentence of three and a half years in jail. He currently lives exiled in Brussels.