[4] The band currently consists of Klemens Hannigan, Einar Stefánsson and Davíð Katrínarson, the latter of whom replacing original member Matthías Haraldsson in 2023.

[18] Hatari won Söngvakeppnin 2019 in March that year, and thus represented Iceland in the Eurovision Song Contest in May.

[2] In the lead-up to the competition, Hatari made headlines with a number of political statements over the Israeli occupation of Palestine and other matters, resulting in Jon Ola Sand, the executive supervisor of the European Broadcasting Union (EBU), warning them that they had reached the limit of the EBU's patience, and would be disqualified should they choose to bring its political statements to the stage.

[19] However, when Iceland's televote score was announced at the end of the final, members of Hatari held up banners displaying the flag of Palestine.

[22] On 23 May 2019, the day of their homecoming concert, Hatari released "Klefi / Samed", a single featuring Palestinian musician Bashar Murad, with a music video.

[31] Hatari primarily consists of musicians Klemens Hannigan, Davíð Katrínarson, and Einar Stefánsson, as well as several contributors.

[2][9] He is the son of Nikulás Hannigan, the head of the trade office division at Iceland's Ministry for Foreign Affairs, and Rán Tryggvadóttir, a lawyer for legal firm LMB Mandat.

[9] Davíð Þór Katrínarson (also known as David Thor, born 23 March 1993) is a vocalist for the group who joined in 2023, following the departure of Matthías Haraldsson.

[5] He has performed with the group since 2017, and appeared as the lead vocalist on the song Helvíti on the band's 2020 album Neyslutrans, credited under his stagename Svarti Laxness.

[2][9] He is the son of Gunnhildur Hauksdóttir, an artist, and Haraldur Flosi Tryggvason, the owner of LMB Mandat and brother of Klemens' mother, Rán.

[33] Outside of Hatari, Matthías is a playwright; he graduated from the Iceland University of the Arts with a one-man play entitled Griðastaður (transl.

[7] Andri Hrafn Unnarsson and Karen Briem are costume designers for Hatari, and Ingi Kristján Sigurmarsson acts as their graphic artist.