 Magni has competed before in Söngvakeppni Sjónvarpsins, performing the song "Flottur karl, Sæmi rokk," which qualified for the final as a wild card in 2006.Magni sings the opening theme for "LazyTown Extra", which first premiered in the UK in September 2008, and is a spin-off of the popular children's show, "LazyTown".In addition to his work with Á Móti Sól and as a solo artist, he is also the vocalist in a Queen tribute band, called Killer Queen, that performs occasionally at clubs and events throughout Iceland.