Roza Kostandyan (Armenian: Ռոզա Կոստանդյան; born 20 May 2000), known professionally as Rosa Linn (Armenian: Ռոզա Լին), is an Armenian singer-songwriter. She started her career by getting signed by Nvak Collective and releasing her debut single "King" with Kiiara in 2021. In 2022, Linn represented her country in the Eurovision Song Contest 2022 in Turin, Italy with the song "Snap" and finished in 20th place. Following the contest, the song went viral on TikTok and charted globally; earning her a recording contract with Columbia Records. Her debut EP, Lay Your Hands Upon My Heart, was released on 22 June 2023.