I.R.A. (Ideas de Revolución Adolescente) is a Colombian hardcore/punk band from Medellín, formed in 1985 by David Viola and some of his friends. Originally their name was S.I.D.A. (Sucios y Desordenados Anarkistas), but they changed it to I.R.A. in 1986. They are one of the oldest bands that still exist in Medellín.