She became a household name as the sweet-natured schoolgirl with the big voice and made history as the first (and youngest) winner of Australia's Got Talent.
But seven years later, an all-grown-up Bonnie Anderson is back and ready to pounce on Australia's pop music scene.
Recently signing to Sony Music Australia, the 19-year-old stunner last month unveiled her debut single, Raise the Bar, which has already hit radio airwaves across the country.
Further cementing her music comeback, the brunette beauty turned heads at the ARIA Awards in Sydney when she stepped on to the star-studded black carpet in an ethereal, Gothic-inspired Dior gown.
While many fans had been left wondering what had happened to the former reality TV star, Anderson insisted there was good reason behind her seven-year absence from the limelight.
"I took the time out for a while to be a kid," she told AAA. "Basically, after Australia's Got Talent, I was so young and I wasn't ready to take on recording contracts or management.
"I really did take the time out to focus on my career and really discover myself as an artist. Because at 12 years old, you're never 100 per cent sure about things. You need to grow up, experience things and know what you want to do. I definitely knew I wanted to be a singer for the rest of my life, so I really did want to have that time out."
Although not even a teenager at the time she was handed the $250,000 cheque for winning the reality talent show, Anderson said the money had been put to good use.
"It's been invested," she said. "I was only 12 at the time, so I didn't really know what to do with it. But I have a really grounded family, so they really put me in the right direction with that."
As well as enjoying her years as a free-spirited teen, Anderson also used the time off to hone her music talents.
"I learnt guitar, a bit of piano, I focused on writing songs and also I performed a lot," she said.
"In the last two years, I've performed over 150 times. I think it was really important being on stage and doing that. I wanted to be taken seriously by my audiences and the industry. I want a long career in music, I wanted to work for it and earn my stripes and earn respect."
While most musicians are starting to wind down for the year with Christmas just around the corner, Anderson plans to keep working hard over the holidays and hopes to start 2014 with a bang.
"I want to release more music, I want to release an album, I want to write more songs, just keep working," she said.
"I've been so grateful for the support and love, it's been amazing. An album is definitely in the making, there's no exact date but I've just been writing lots and getting ready for it. But there are plenty of things coming up for 2014, which is really exciting. It's going to be a good year."