Yana Oleksandrivna Shemaieva (Ukrainian: Я́на Олекса́ндрівна Шема́єва; born 21 October 1995), known professionally as Jerry Heil (Ukrainian: Дже́ррі Гейл [ˈdʒɛr⁽ʲ⁾ːi ˈɦɛjl]), is a Ukrainian singer, songwriter and YouTuber. She began her career after launching her YouTube channel in 2012, publishing vlogs and musical covers.

Heil began her professional music career in 2017, releasing her debut extended play De mii dim (transl. Where's my home) with Vidlik Records. She later released the single "Okhrana otmiena" in 2019, which became a top five hit in Ukraine. Her debut studio album Ya yana (transl. I'm Yana) was later released in October 2019. Since starting her YouTube channel, Heil has accumulated more than 34.9 million views and 395 thousand subscribers. She represented Ukraine in the Eurovision Song Contest 2024 alongside Alyona Alyona with the song "Teresa & Maria".