S!sters was a German pop duo consisting of Carlotta Truman and Laura "Laurita" Spinelli. Carlotta previously sung with the band Revolverheld and won multiple awards as a solo artist, while Laura was a backing vocalist for The Voice of Germany live tour and was one of Lena's backing singers in 2010.
The girls were added to the German final as a late substitution for another artist who had dropped out.
They represented Germany at the Eurovision Song Contest 2019 in Tel Aviv with the song Sister, finishing in 25th place in the final.
On 10 February 2020, the girls revealed that they had split up to pursue solo careers.