Fast-forward 13 years and Mills is now 34, has a few high-profile relationships under his belt - like the famous affair he had with Paris Hilton - and has ticked-off some big performances in the likes of Wicked, Ghost and Grease. It's the Australian actor's latest move, though that has tongue's wagging.
Mills' posts on his Instagram at the weekend confirm he's uprooting himself for a move south to Melbourne from Sydney, where he currently resides. He plugged his personal trainer and gym in the post, which features him boxing in his activewear.
If his further posts are anything to go by, it's obvious he'll miss the city he's called home for over six years.
Speculation about the reason behind the move have grown, with the star ignoring fans' direct questions on the matter.
It's believed he may be joining hit Australian soap, Neighbours, which is looking to shake things up with dramatic new storylines.
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