YouTube stardom to the Olympics? Singer Cody Simpson's unlikely bid to compete at Games

• Australian to go up against likes of Kyle Chalmers at nationals
• Simpson two seconds off Olympic trials pace in 100m butterfly

Teenybopper poster boy Cody Simpson will be among Australia's top swimmers at next month's national championships as he hones his 100m butterfly before June's Olympic trials.

The junior swimmer turned international singer has taken another key step in his quest to make it in the pool by entering the Australian titles on the Gold Coast, where he will attempt to shave whole seconds from his personal best in his unlikely bid to qualify for the Tokyo Games.