Joost Klein (born 10 November 1997), known mononymously as Joost, is a Dutch musician, writer and former YouTuber. Mainly a hip hop artist, his songs and performances often include influences of electronic music, such as drum and bass, hardstyle and gabber.He has released eight studio albums, two of which reached the top ten of the Dutch Albums Top 100. He has also amassed four chart entries on the Dutch Top 40, and is best known for "Scandinavian Boy", "Wachtmuziek" and "Friesenjung". He is set to represent the Netherlands in the Eurovision Song Contest 2024. In 2023, Klein scored his first hit in Germany with the single "Friesenjung", a collaboration with German rapper Ski Aggu and an adaptation of a song by East Frisian comedian Otto Waalkes. The song reached first place on the German Single Top 100. That same year, Klein expressed his interest in representing the Netherlands in the Eurovision Song Contest 2024 in Malmö, Sweden. A petition was launched by the NPO 3FM radio programme VoorAan of PowNed in an attempt to realise this goal. On 11 December 2023, AVROTROS announced that Klein had been selected as the Dutch representative for the contest.