Grace Shaw felt the way a lot of teenagers do just before they finish school - a bit lost.
But all that changed when she went to see Adelaide rapper Allday, and she realised she wanted to make music.
"I wasn't making music before I went to that concert. I was just at school, not really sure what I was going to do when I graduated, which was coming up a few months from then," Shaw told AAP.
"I just really had a strong gut feeling during and after that concert and I just followed that."
That feeling pushed her to start making her own music, before long she was creating her own beats using garageband in her bedroom and began singing over them.
She also bravely sought out other musicians, producers and songwriters who appeared in some of Allday's collaborations and mixtapes.
"I added them all on Facebook and just messaged them and asked everybody for advice. I didn't really know any musicians in real life so I tried to meet some people over the internet that I could just ask for help," she said.
People responded and Shaw became Mallrat. She began creating music that made people sit up and take notice.
Her first EP, Uninvited, which was released in 2016, got millions of streams and she found celebrities like Lorde and actress Chloe Grace Moretz loved her music.
Over the past year, everything has gone up a notch and her single, Better, made it into the top 50 of triple J's Hottest 100.
"I listen to the countdown every year so it's a bit of a dream come true," she said.
She also performed at the famous South-by-Southwest festival in Austin, Texas this year and was named as one of the 17 Acts That Stood Out by the New York Times and supported chart-topper Post Malone on his recent tour of Australia.
She'll release her second EP, In The Sky, next month and head out on a tour including a spot at Splendour In The Grass.
It's a lot for a 19-year-old who didn't even realise music was her path in life.
"I think a lot of friends I went to school with thought I was joking when I said 'I'm going to try and make music'. I think they thought it was a bit of a prank or something," she says.
"Now I feel a lot of my really great friends have been people I've met through music."
*Mallrat's EP, In The Sky, will be out on June 1