Iceland participated in the Eurovision Song Contest 2010 with the song "Je ne sais quoi", written by Örlygur Smári and Hera Björk and performed by Björk. The Icelandic entry for the 2010 contest in Oslo, Norway was selected through the national final Söngvakeppni Sjónvarpsins 2010, organised by the Icelandic broadcaster Ríkisútvarpið (RÚV). The selection process consisted of three semi-finals and a final, held on 9 January, 16 January, 23 January and 6 February 2010, respectively. Five songs competed in each semi-final with the top two as selected by a public televote advancing to the final. In the final, "Je ne sais quoi" performed by Björk emerged as the winner exclusively through public televoting. Promotional activities for the entry included the release of a music video and album and performances of the song in Norway and at the UKeurovision Preview Party in London.

The Eurovision Song Contest 2010 was the 55th edition of the Eurovision Song Contest. It took place in Oslo, Norway, following the country's victory at the 2009 contest with the song "Fairytale" by Alexander Rybak. Organised by the European Broadcasting Union (EBU) and host broadcaster Norsk rikskringkasting (NRK), the contest was held at the Telenor Arena, and consisted of two semi-finals on 25 and 27 May, and a final on 29 May 2010, tying with the 1999 edition for the contest hosted the latest. The three live shows were presented by Norwegian television presenters Erik Solbakken and Nadia Hasnaoui and singer Haddy N'jie.