What pop star turned Aussie Olympic swimming hopeful Cody Simpson has to do as he looks to secure his spot in Dolphins squad ahead of Paris Games

Pop star and swimmer Cody Simpson will soon find out if he is good enough to become an Olympian in Paris, which will be his final sporting ‘throw of the dice’.

The 27-year-old will swim in the heats of the 100m butterfly – his favorite event – from 11am AEDT at the Australian Trials in Brisbane, with the final on Saturday evening.

Standing in his way are the likes of Matt Temple and Shaun Champion – and his coach Michael Bohl was coy when asked if Simpson was ready for the dive of a lifetime.

“You just don’t know,” Bohl stated.

“It’s a challenge, but he’s as ready as he’ll ever be. This is his last roll of the dice and we hope he can rise up and be the best he can be.

Pop star and swimmer Cody Simpson will soon find out if he’s good enough to be an Olympian when he competes in the 100m butterfly heats at the Australian Trials in Brisbane

His girlfriend Emma McKeon has already booked her place in the Dolphins team ahead of the Paris Games in July

‘He looks good, but the reality is you have to deviate from the rankings. He is about fourth, fifth or sixth in the 100 meter fly.

‘It will be a huge challenge to form this team. It is possible, but it is expected to be a challenge for him to do. I’m not saying he’s going to make it, I’m not saying he’s not going to make it.’

Simpson has already suffered plenty of heartbreak at the Australian trials, narrowly missing the 100m freestyle final after finishing 10th in the heats.

Rubbing salt in the wound, Simpson set his best time ever on Thursday evening in the B final of the 100 meter freestyle.

This swim was good enough to secure a place on the Australian Olympic team for the Paris Games, but that doesn’t count.

Simpson missed the 100m freestyle A final by less than two-tenths of a second.

As a result, he took part in the second level finals. He won the race after recording a personal best of 48.67.

Simpson has already suffered many upsets during the Australian trials, narrowly missing the 100m freestyle final

Had he achieved that blistering time in the A final, he would have been part of the Paris Olympic team as a 4x100m relay swimmer.

“Swimming is tough,” Simpson told a group of reporters after falling out of contention for a relay spot in the 100-meter freestyle.

‘You train for a very long time for very marginal gains, sometimes microscopic.

“I’ve just been pounding the wall to get to that next level, and the faster you get, the harder it is to get faster.”