Syd Hartha, whose real name is Sonia del Rosario, was born on December 18, 2002, in Manila, Philippines. She grew up in a musically inclined family and was exposed to music at a young age. Syd learned to play the guitar when she was 11 years old, and by the time she was a teenager, she had started writing her own songs. In 2018, Syd Hartha entered the Philippine music scene with her debut single "Paruparo," which quickly gained attention for its poignant lyrics and soulful sound.