Обратен ефект (Reverse Effect) are Bulgarian rock/ska/funk band, formed in Sofia, Bulgaria in 2000. The original lineup consisted of Мони, Кольо, Драго, and Яко. The group existed back in the 90s as a band called “Electric Shock”, playing thrash metal and releasing one album, which didn’t gain much success on the market. Therefore the guys decided to change their name to Обратен Ефект and their style to more radio-friendly and ska sound Read more on Last.fm