This made Goodrem the first and only artist to have five number-one singles from a debut album.
Innocent Eyes is the best-selling album of the 2000s decade in Australia and the debut album with the most number-one singles.
"They're spending all their spare time together and she's really, really happy," the source said.
Delta Lea Goodrem (born 9 November 1984) is an Australian singer-songwriter and actress.
"They've been dating for the past few months," a source told of the pair, who were photographed leaving the Boathouse in Palm Beach with friends in late July.
"But she really wanted to keep the relationship under wraps until she worked out where it was going." coach, 31, and the rugby union star, 32, reportedly first met at a Nine event earlier this year and, according to the source, "things have been moving pretty fast".
Born and raised in Sydney, New South Wales, she enrolled in dancing, acting, singing and piano classes at a young age.
Venturing into the music industry, Goodrem signed to Sony Music at the age of 15 and released her debut album, Innocent Eyes (2003), which topped the ARIA Albums Chart for an all-time record of 29 consecutive weeks and reached number two on the UK Albums Chart.
It became one of the highest-selling albums in Australian history, with over four million copies sold worldwide and all five of its singles—"Born to Try", "Lost Without You", "Innocent Eyes", "Not Me, Not I" and "Predictable—reaching number one on the ARIA Singles Chart and the first three reaching the top ten in the UK Single Chart.
Wallabies rugby player Drew Mitchell is winning off the field.
Days after reports surfaced that he's now the guy in Delta Goodrem's life, new photos show the two looking very much like a happy couple.
Indeed, Delta was all smiles on their Palm Beach outing, opting to wear a flowy bohemian dress and minimal makeup.
And her Liverpool-born man seemed equally at ease in casual shorts and Converse sneakers.