Giona Ostinelli (born March 12, 1986) is a Swiss–Italian composer who resides and works in Los Angeles. Ostinelli is best known for his critically acclaimed work on Netflix's hit fantasy series The Witcher starring Henry Cavil. The Witcher Original Soundtrack Album, featuring songs and score composed and produced by Ostinelli and his scoring partner Sonya Belousova, has achieved commercial success and critical recognition. The album debuted #1 on iTunes Top Soundtracks with the enormously successful hit single "Toss A Coin To Your Witcher" #1 on iTunes Top Soundtrack Songs and #1 on Billboard Digital Rock Songs Sales. The album charted #4 on iTunes for Top Albums (behind only Eminem, Breaking Benjamin, and Chase Rice) and in the top ten in every major territory in the world. "Toss A Coin To Your Witcher" broke into the Billboard charts: Billboard Top Current Albums, Billboard Top Album Sales, Billboard Top Soundtrack Albums, and The Billboard 200. The song has quickly become a viral sensation and a worldwide phenomenon. New York Post called it "the breakout hit," Thrillist "the biggest banger of 2020," Entertainment Weekly "a viral hit," Esquire "the best part of Netflix's series," The Verge "the hit song of the season," while Forbes stated that "the viral earworm became just as famous as the show."Ostinelli has written scores for over 35 feature films that premiered at Sundance Film Festival, Tribeca Film Festival, Cannes International Film Festival, South by Southwest Film Festival, among others. Ostinelli's score for breakout psychological thriller Darling released by Lakeshore Records and fan favorite Mondo Records has been described as "one of the most interesting and innovative soundscapes". His soundtrack for POD has been shortlisted for the Academy Awards for Best Original Score.Ostinelli is also known for his work on Tobio: The Puppet Master (Тобио: Мастер Кукол) – a theater production directed by George Dolmazyan (Георгий Долмазян), recipient of the Russian Ministry of Culture Award. Tobio: The Puppet Master premiered on April 23, 2013 at the Moscow State Theater U Nikitskikh Vorot (Московский Государственный Театр у Никитских Ворот) in Moscow, Russia.The Huffington Post described Ostinelli as "an innovator with "surprise" coded into his DNA".