Delta Goodrem has been too "busy" to plan her "perfect" wedding

She told Australia's WHO magazine: "Don't ask about the wedding.

"Things have been very busy, but a great kind of busy - the kind where I've never been happier.

"It's about planning the day in a way that everyone can feel like they are invited, but we'll keep on the path of discovering what makes the perfect day for us."

The pair had been dating since 2017, and Matthew got down on one knee during a romantic getaway to Malta last September.

Alongside a sweet snap from the sunset proposal of the pair toasting the moment with a kiss and glass of bubbly, she wrote on Instagram: "My best friend asked me to marry him."

Her new fiancée commented: "My forever love!"

The couple like to keep their relationship out of the limelight as much as possible, though in recent years Matthew performed with Delta on her Instagram amid the COVID-19 pandemic.

The 'Born To Try' hitmaker previously explained that whilst they want to keep their romance private, they enjoyed getting "creative" together and wanted to share that with their fans.

Speaking to Stellar magazine, she said: "I am pretty consistent with saying to people that my private life is my private life, but we are spending isolation together and, in our household, we're both performers.

"It's a relationship of respect. Matt is an incredible musician, and we really enjoy working together.

"Music is how we met, it's what we both do, so it's really about just being creative in the household."

Delta confirmed her romance with Matthew in January 2018, after several months of dating, and admitted later that year she would be keeping her love life out of the public eye.

She said at the time: "I made a conscious decision when I was 30 that I'm not somebody who wants to talk about relationships."

The 'Let It Rain' singer has had a number of high-profile romances in the past, including tennis star Mark Philippoussis, singer Brian McFadden, and Jonas Brothers star Nick Jonas.