John Farnham is set to become a grandfather for the first time, and his son James couldn’t be happier as he was spotted showing off his partner’s growing baby bump on Saturday.

The iconic Aussie singer’s son announced in January he and Tessa Effendi are expecting their first child together, a baby boy who is due later this year.

James has now shared a picture to Instagram which showed he and his partner cuddling up for a selfie as she flaunted her swelling tummy.

The happy couple appeared to be enjoying a night out together as Tessa slipped into a tight white shirt while James opted for a black PAX tee.

James and Tessa announced their pregnancy earlier this year by sharing a clip to Instagram which showed James setting alight a beautifully decorated cake inscribed with the words ‘coming 2025’.

After he lit the inscription, it peeled away to reveal the word ‘Boy’, confirming they are having a son.

He also shared a photo of his partner’s ultrasound photo, which showed their unborn baby’s hand.

James captioned the clip with some heartfelt words: ‘Coming 2025! Tessa, I love you so much!’

James has been in a relationship with Tessa, who is a registered Doctor of Traditional Chinese Medicine, for several years and they previously attended the premiere of the John Farnham: Finding the Voice documentary together.

This will be the first grandchild for the legendary You’re The Voice singer, whose elder son Robert married his long-term girlfriend Melissa Kelly in 2024.

In August, James and Rob, 45, shared intimate family moments in an effort to raise money for cancer research.

Rob and James, who are ambassadors for the Cancer Council’s annual Daffodil Day fundraising drive on August 22, took to Rob’s Instagram to share a series of heartwarming family snaps.

The clip showed Rob and James talking about their iconic father’s cancer journey over a carousel of rare family photos.

‘Our father was diagnosed with cancer two years ago,’ Rob said in the video.

‘The last couple of years have been difficult on our family. It started off as an ulcer inside his mouth and, we found out it was cancer. It was a pretty brutal time for us all.’

James added initiatives like Daffodil Day had played a crucial role in his father’s survival.

‘Our Dad wouldn’t be here without cancer research and that’s why days like Daffodil Day are important,’ he said.

Rob then urged followers to get behind the important cause by donating online or finding a flower stall.

‘This Daffodil Day, for everything that cancer takes, please give,’ Rob concluded.

It is unclear if John will ever perform again after undergoing a marathon surgery to remove the tumour from his mouth in 2022.

The operation, carried out by 26 medical staff, also saw a major part of his jaw removed and 12 months after the surgery John revealed he was cancer free.

He had only discovered he had the cancerous growth in his mouth after his wife Jill insisted on taking him to the doctor for a check up when he developed a persistent mouth ulcer.