In 2010, Søllesvik met Emilie Haaland Austrheim and formed a duo Elsa & Emilie. In 2014, the duo signed a contract with record label Sony Music and released their debut album Endless Optimism the same year.[3] The duo was nominated for Best New Artist at the 2014 Spellemannprisen, annual Norwegian music award.[4] "Run", a track from the album, gained popularity after being featured in the first season of the television series Skam in 2017.[5]
In 2017, they released their sophomore album, Kill Your Darlings with singles "Au volant" and "Chains and Promises".[6] In 2018, the duo announced their split to focus on Søllesvik's solo career.[2]
2018–present: Solo career and Melodi Grand Prix
After the split of Elsa & Emilie, Søllesvik moved to Oslo to establish herself as a songwriter for other artists.[1] She co-wrote the track "Witch Woods", performed by Emmy, which competed at the Melodi Grand Prix 2021, finished at the final.[7] She performed the opening theme of the third part of Korean television series Show Window: The Queen's House, titled "Heaven Made".[8]
On 10 January 2022, she was announced as one of the competing acts of Melodi Grand Prix 2022 with the song "Death of Us", co-written with Jonas Holteberg Jensen and Andreas Stone Johansson.[9] She finished as one of the top four finalists.[10] Apart from her own entry, she also co-wrote "Hammer of Thor", performed by Oda Gondrosen, which qualified to the final.[11]
She returned to the competition a year later with the song "Love You in a Dream" with Andreas Stone Johansson and Tom Oehler,[12] qualifying for the final and placing fourth. She also co-wrote Eline Thorp's entry titled "Not Meant to Be", which also qualified for the final, placing sixth.[13]
^"쇼윈도 : 여왕의 집 Part.3" [Show Window: The Queen's House Part.3] (in Korean). Genie Music. Studio M-Lab. 13 December 2021. Retrieved 4 January 2022 – via Melon.