Koop is Oscar Simonsson & Magnus Zingmark.
When listening to Koops music it's somehow easy to believe that it's played by a small orchestra, but in fact the music is based on samples. Thousands of small clips from records puzzled together into new songs. All the drums, strings, horn sections and choires are actually sampled! This is a very time consuming way to make music (it's one of the reasons it takes such long time to make a koop album), but it's the only way to create the surreal Koop sound. One thing though, that for sure aren't sampled, is the vocals. Many singers has blessed the Koop albums with their talent, and on Koop Islands the singers are : Ane Brun, Yukimi Nagano, Hilde Louise Asbjornsen, Rob Gallagher and Mikael Sundin. Some fine musicians has also participated on the album playing solos, percussion and bass. Those are : Mattias Ståhl, Magnus Lindgren, Karl Frid, Nils Berg, Martin Höper, Ola Bothzén, Dan Berglund and Mats Lindfors. When playing live Koop transforms into a 7-9 piece swing orchestra including one or two singers, and the main mission is to make people move their feet. The line-up may vary from time to time so if you are looking for the personel on a specific concert please dont hesitate to drop a message. Koop themselves play piano/accordion (Oscar), sampler (Magnus), and wear dresses.