Daði Freyr Pétursson, known professionally as Daði Freyr or simply Daði, is an Icelandic musician living in Berlin, Germany. As the frontman of Daði & Gagnamagnið, he was due to represent Iceland in the Eurovision Song Contest 2020 with the song "Think About Things", before the event was cancelled in response to the COVID-19 pandemic. Instead, he represented Iceland in the Eurovision Song Contest 2021 with the song "10 Years", finishing in fourth place. He performed a cover of Atomic Kitten's "Whole Again" during the intermission of the 2023 competition.

Iceland planned to participate in the Eurovision Song Contest 2020, which was scheduled to be held in Rotterdam, Netherlands. Icelandic broadcaster Ríkisútvarpið (RÚV) held a televised selection process, Söngvakeppnin 2020, to choose its entry for the contest. Following two semi-finals and a final, "Think About Things", written by Daði Freyr Pétursson and performed by Daði og Gagnamagnið, emerged as the winner of the event in February 2020. In mid-March 2020, due to the spread across Europe of the coronavirus disease 2019 (COVID-19), the European Broadcasting Union (EBU) announced the contest's cancellation, with Daði og Gagnamagnið subsequently announcing that they would represent Iceland at the 2021 contest.