Joost (born Joost Klein, November 10, 1997, in Leeuwarden, Netherlands) is a rapper and singer who first gained a following on YouTube. In 2016, he released his first EP "Dakloos." His debut studio album "Abino" dropped three years later. In 2023, his breakthrough single "Freisenjung" (w/ Ski Aggu and Otto Waalkes) charted throughout Europe, peaking at number one in Austria and Germany, while his single "Europapa," became his first to chart in the US. Joost competed for the Netherlands at Eurovision in 2024 but was disqualified in the semi-finals. Käärijä, Finland's 2023 Eurovision representative, withdrew from announcing Finalnd's 2024 jury vote due to Joost's disqualification. They collaborated on the single "Trafik" later that year.