In honour of the beautiful girl, the internet peeps poured their hearts out via social media, including Ariana Grande.
Ari posted a pic from one of her shows and wrote:
"What's newwwww, Buenos Aires Argentina, I love you ☁️ Saffie, we're 💭 of you baby 🎂."
In a recent interview with the BBC, Saffie's parents spoke out about their late daughter.
"She was a joker. She was a huge character," her father Andrew Roussos said. "She was just everything you could wish for in a little girl."
R.I.P. Saffie <333