Jónsi is an Icelandic musician. He composed the score for the film How to Train Your Dragon and released his debut solo album Go. Jónsi also released the albums First Light, Riceboy Sleeps with Alex Somers, and the soundtrack for We Bought a Zoo. He has performed Where No One Goes with John Powell and Samuli Kosminen, and released the singles Cherry Blossom and Sticks & Stones. Jónsi has also worked with Swedish composer Carl Michael von Hausswolff and appeared in the 2007 documentary film Heima.