Detski Muzicki Festival Si-Do is a children's festival held annually in Bitola, Republic of Macedonia. Held in May, it has gained much support from the audience in recent years. Children from across the country participated on this event which usually consisted of 15-20 songs. The association of culture "ProMedia" Bitola the name "SiDo" is fully protected on 2005 year. In 2005 this festival has made its resumption into an International children's Festival"SiDo".
The general manager of the festival is composer composer Darko Serdenkov. International children's music festival "Si-Do" is held every year at the City Culture centre in Bitola, in April. Children from different countries such as Bulgaria, Romania, Slovenia, Serbia, Greece, Albania, Ukraine, Russia, Italy and Macedonia take part in this International music festival.