Yonatan was born and raised in Jerusalem, Israel, and currently resides in Tel Aviv. During his military service, Blumenfeld commanded a team of Arabic translators. He studied music in Toronto with Kinsley Ettienne (who toured with Nina Simone, Etta James, and more), and later graduated from the Sam Spiegel Film & Television School with an associate degree in screenwriting. In 2014 he won the title of Israel’s Slam Poetry Champion and competed in the world championship in Paris. He performed his poems in the Israeli Knesset and the President’s residence, and landed a weekly opinion segment on prime-time TV and radio. In 2016 he led a number of viral campaigns that reached millions of viewers, focused on civil and human rights, including LGBTQ issues and the civil war in Syria. As Yonatan discovered the expressive power of spoken-word and slam poetry, he founded workshops for a variety of communities including ex-Haredi, asylum seekers, doctors, and youth, to creatively share their stories. In 2017 Blumenfeld created and wrote a children's TV show and two musical plays, which he also directed. For his work in theatre Yonatan received two awards from Broadway world magazine and the Israeli fringe award. In one of his plays, The Fifth Mother, Yonatan highlights the female perspective in the biblical story of Hagar and Sarah and discusses the special bond between their descendants. Blumenfeld is also the lead singer of the rock band “Dirty Fly”.