Johnossi is a rock duo from Saltsjöbaden, Stockholm County, Sweden, consisting of songwriter, singer, guitarist John Engelbert and drummer, percussionist, singer Oskar "Ossi" Bonde. Their music is characterized by a full guitar sound supported by Engelbert's unorthodox guitar rig and myriad effects pedals, and Bonde's straightforward beats; studio releases often feature colorful percussion accents on instruments such as tambourine, woodblock, guiro, and chimes. A variety of musical styles appear in their work, from hard rock, to blues riffs, post-punk, and even gloom-pop, though lyrical themes are almost uniformly personal and slightly angsty. They supported Green Day in Sweden on 5/6/2010 at Ullevi.