Brisbane singer-songwriter Conrad Sewell says winning an ARIA for his song Start Again has been the best night of his life.
Sewell won for Song Of The Year at the ARIAs on Thursday, beating his younger sister Grace who was nominated in the same category.
"I just wasn't expecting any of this," Sewell told reporters.
"This is the best night of my life."
Sewell used his acceptance speech to thank his manager and label mates, his brother Oliver and sister Grace.
"It's taken me a minute to get here, by a minute I mean 27 years, thank you so much," Sewell said.
He told reporters he was lucky to grow up in a creative household.
"My mum wasn't the normal tuck shop mum. We would watch the Grammys together instead of doing homework," he said.
Sewell said he had been texting with his sister about his win.
"We've been back and forth she's so happy for me," he said.
"I took her into her first studio and I used to sing to her when I changed her nappy, so I better have won before her."
Artists in the running for the publicly voted award included Iggy Azalea, Jarryd James, Marlisa, Nathaniel, Peking Duk, Sia, The Veronicas and Vance Joy.
Courtney Barnett, the biggest winner at this year's ARIAs, has yet to say a word about her accolades.
The Melbourne singer-songwriter, who is performing in London, took out awards for Best Independent Release and Breakthrough Artist but didn't even send a video message to Thursday's ceremony.
The low-key singer did make an appearance at the nominations event in October, when she received eight nods to make her the most-nominated artist.
There have been a few surprises on the night with dark horse Jarryd James winning best pop release for Do You Remember, beating Tame Impala - who in turn acknowledged how surprised they were when they beat AC/DC to win best group.
The ceremony featured some serious star power in the form of British artist Ed Sheeran who presented the first award, Song of the Year, to Sewell.