[1] Rašić was born in Belgrade on 12 October 1981 and grew up in Zajecar, provincial city in Eastern Serbia where she lived till the age of nineteen.

Her father, Jovan Rašić, is a dentist who was also the founder and lead singer of the popular Yugoslavian jazz rock band Generacija 5.

[2] Sajsi MC stated that unlike her sister she did not show interest in music during childhood, but only during her university years that she started writing lyrics.

The made-up character of a "shallow and materialistic" high school girl named Tiffany, which was portrayed by Sajsi in the song, was negatively commented by musical critics on Radio Television of Serbia, failing to recognize the satire behind it.

Some of her best-known songs include: "Antifa kučke" (2012), "Nadrkano hodanje" (2014), "Došla sam da dam" (2015), "Lokal beogradizam" (2016) and "Redaljka" (2017).