Jón Jósep Snæbjörnsson or Jónsi ( born 1 June 1977 ) is an Icelandic singer and member of the band '' Í svörtum fötum '' ( " In black clothing " ) . He represented Iceland in the Eurovision Song Contest 2004 and finished 19th . He has also competed at Söngvakeppni Sjónvarpsins 2007 , which is a television show to pick Iceland 's song for the Eurovision Song Contest with the song Segðu Mér . Jónsi once again represented Iceland in the Eurovision Song Contest 2012 in Baku , Azerbaijan in a duet with singer Greta Salóme , qualifying for the Eurovision final and finishing in 20th place . Jón Jósep also performed the opening theme song to the Icelandic children 's television show '' LazyTown ''
Eurovision Song Contest 2004
Eurovision Song Contest 2004
Jón Jósep Snæbjörnsson