Marty Zambotto (born 25 November 1995), known professionally as Go-Jo, is an Australian singer, songwriter, and record producer. He is set to represent Australia in the Eurovision Song Contest 2025 with the song "Milkshake Man". Zambotto grew up on a remote, self-sustaining estate in Western Australia, which helped to develop his musical style and artistic identity. He received his first guitar at the age of 13, initially writing and producing songs for other artists before launching his own solo career. In the present day, he is professionally based in Sydney. Zambotto is known for his guitar-centric original songs and covers. His cover of the Goo Goo Dolls' song "Iris" has received over 3 million streams on Spotify. A video of him performing his song "Mrs. Hollywood" in a shopping mall has been viewed over 1 million times. On 25 February 2025, SBS announced that Zambotto would represent Australia in the Eurovision Song Contest 2025 in Basel with the song "Milkshake Man".
