Shir was born on April 10th, 1988 in Israel. Shir's father is Oren Amnon TSHUVA and her mother is Ariela HAJAJ. Her paternal grandparents are Nissim TSHUVA and Yehudit; her maternal grandfather was Mani HAJAJ and her maternal grandmother is Gina. She has a brother and a sister, named Bar and Noa. She is the oldest of the three children.