Ratata was a Swedish pop band formed in Stockholm in 1980. It functioned as a 4-piece band until 1983, when it was restructured. Johan Ekelund, having played with the band briefly, accepted an invitation and continued with Scocco as a duo until 1989. The duo had a brief comeback in 2002.
Source: Wikipedia (https://en.wikipedia.org/wiki/Ratata_(band))