Cody Simpson has lived quite the life in the spotlight.

After a Grammy-nominated record producer in the US discovered his YouTube music videos, Simpson was fast-tracked to fame as a teenager.

But his dream wasn't to be a global pop star, perform on Broadway or act on television - all of which he's achieved.

Watch: Cody Simpson in The Masked Singer Australia final. Post continues below.

His dream instead was to swim for Australia, just like his parents. (Simpson's mother Angie raced for Australia at the 1987 Pan Pacific Games, and his father Brad swam for Australia at the 1994 Commonwealth Games.)

And now the singer is doing exactly that.

The 25-year-old is currently competing in the 2022 Commonwealth Games in Birmingham, alongside his girlfriend and Olympic swimmer Emma McKeon, 28.

It's not the first time Simpson has dated someone in the public eye.

Over the years, he's been some pretty high-profile relationships, including a supermodel, a famous sibling, and a member of the Kardashian-Jenner family.

Here's everything we know about McKeon and Simpson's relationship and the singer's past dating history.

Cody Simpson and Emma McKeon.

Simpson and McKeon were first linked together earlier this year in May.

The swimmers later went Instagram official when Simpson posted a photo of the pair in Barcelona in July.

"A brief rendezvous in Barcelona with my love," he captioned the post.

Speaking to 7NEWS Spotlight this week, Simpson explained he always knew McKeon was "special" but it took a year before anything came of their relationship.

"I always acknowledged that there was a connection that we had... But, we didn’t act on it until what ended up being a year later."

"But you know, I always saw her as this special person, to me. Like overall, pretty inspiring human."

The pair also have family ties, after Simpson’s parents swum with McKeon’s.

"This is the most authentically happy I’ve ever seen him in my life," Simpson's mum Angie toldSpotlight.

Simpson and McKeon feel the same way.

"We’re loving where we’re at, at the moment," McKeon said.

"We talk every day about how happy we are and how lucky we are," added Simpson.

But while things are going swimmingly for the pair behind the scenes, they recently made headlines over a rumoured love triangle involving McKeon's ex-boyfriend, Kyle Chalmers, who is also competing at the Commonwealth Games this year.

Rumours started swirling after Chalmers back flipped on his decision to compete in the 100m butterfly at the world championships, ending Simpson's hopes of competing in the race. At the time Simpson, who finished third in the 100m butterfly at the national swimming championships after Chalmers, was knocked out from being one of two athletes to represent Australia.