In 1982, his family made the move from Iceland to Cape Verde where his father volunteered in a program teaching locals how to fish.
Guðmundsson spent his childhood in Cape Verde, where he owned several pet monkeys[1] and swam as a pastime.
In 1990, whilst working in Hrísey, Mugison saw Kjartan Hallur Grétarsson live in concert, which was “a major turning point in his life”.
Kjartan agreed, and they met every Wednesday in order for him to impart his knowledge and expose Mugison to different kinds of music and literature, including Frank Zappa, the Beat Poets, and key Icelandic poetry.
This union has led to a lifelong friendship, with Kjartan H Grétarsson creating subsequent cover art for the album Mugiboogie.
He chose this particular school because of its large amount of alumni that were musicians, most notably Páll Óskar, whose music Mugison enjoyed.
Kiddi was very involved with the early careers of Sigur Rós and Björk, and turned Mugison onto artists such as Sonic Youth and Pavement.
Sharing the same vision as someone as influential as Björk made Mugison even more determined that he was on the right path, so he purchased a second hand Apple 3G PowerBook with the sole intention to create music on it.
He also sent a copy to Matthew Herbert who ran Accidental Records, as Mugison was a great admirer of his work.
The CD packaging was ambitious with Mugison and his family, hand-stitching over 10,000 copies before putting them all on a boat to England.
He built himself 'The Mugibox', a box, no bigger than a suitcase, that contained all the equipment he needed to go out on the road (including his pants).
A fortuitous chance encounter with Gruff Rhys from Super Furry Animals in London during 2003 led to Mugison performing as a supporting act for the Welsh band at The Royal Festival Hall.
After many tours during 2003-2004, Mugison returned to Ísafjördur, and was asked to create the soundtrack to an Icelandic Film Niceland.
[6] Mugison got the idea while in London one summer performing at a Rough Trade music festival that lineup included a host of up-and-coming talent.
[citation needed] Even though Björk declined to perform, plenty of other people got excited about the idea of an all-day music festival where the only remuneration would be a damn good time.
No soundchecks and no backstage allowed, and each performing act would be informed of their playing order until just 10 minutes of getting on stage.
Mugison and Palli (the sound-engineer) were fantasising about an alternative setup which did not involve just putting a lot of controllers on a table, hooking up adapters and cables to all the midi stuff.
Mugison and his engineer also built a floor-station switch with many buttons, hiding the computer ("out of sight, out of mind").
2005 saw Mugison go global with the musician playing approximately 200 gigs in one year whilst supporting his second album Mugimama Is This Monkey Music?.
Gig highlights included supporting Fantômas in London at the HMV forum and playing Roskilde festival.
He moved back to The Westfjords with his young family, bought a house, converted the garage into a studio and started jamming with friends, this was going to be the basis of the next record.
Mugison was also asked to participate in an Amnesty International charity event whereby he played all 5 boroughs of New York in one day.
Due to the phenomenal success of the record, Mugison was able to pay off various debts and as a thank you gesture to the people that bought the album he did three free concerts in Reykjavík at Harpa in December 2011.