Sudden Lights is a Latvian indie rock band that was formed in Riga in 2012. The group consists of vocalist Andrejs Reinis Zitmanis, drummer Mārtiņš Matīss Zemītis, guitarist Kārlis Matīss Zitmanis, and bassist Kārlis Vārtiņš. The band's music is a mix of pop rock and alternative, and they are known for their catchy melodies and melancholic notes. The group won Supernova 2023 with their song "Aijā" and represented Latvia in the Eurovision Song Contest 2023. They are one of the most streamed artists in Latvia.

The band's debut album, "Priekšpilsētas" (Suburbs), was released in September 2017 and contains 10 songs in both Latvian and English. The album was preceded by the singles “Suburban Waltz” , “The Age” and “On this Side of the Fence”, which received playing time on Latvian radio stations. Sudden Lights took part in Supernova 2018 with their song "Just Fine"  and finished in second place. They joined Latvian pop-rock band Brainstorm on their Latvian tour as the support act for all five concerts.

Sudden Lights' second album, "Vislabāk ir tur, kur manis nav" (The Best Place is Where I'm Not Around), was released in October, 2019, and produced by Jānis Aišpurs. The band began their first concert tour in Latvia in February 2020 but was forced to cancel their closing concert due to the COVID-19 pandemic. In 2020, the band collaborated with "Astro'n'out" on the song “Haosā” , which won the Golden Microphone 2021 Award as Radio Hit of the Year.

In January 2021, the band started working on their third studio album with producer Jānis Aišpurs, and the first single of the forthcoming album “Silences” was released in April 2021. The album, "Miljards vasaru" (A Billion Summers), was released in May, 2022, and was nominated for the Latvian record award Zelta Mikrofons 2023 as the best pop album. The band's third album was presented in May 2022, in the Small Hall at Splendid Palace, with the band giving a small concert and presenting a documentary film about the production of the album.

Along with the release of the album, the band released the single “A Couple of Photos Not Taken” , and in the summer of 2022, they collaborated on the song “The World is Shaking” .

Latvia's entry for the 2023 Eurovision Song Contest is titled "Aijā", which interestingly, is a woman's name. This love song stands out for its incorporation of unique sound elements. Despite facing stiff competition in the national final Supernova, "Aijā" emerged as the clear winner, beating out the top favourite Patrisha with her song "Hush". It's worth noting that Latvia tends to send laid-back and unassuming bands to Eurovision, such as Brainstorm, Triana Park, and PeR, with varying degrees of success.