Michael 'Wippa' Wipfli has showed off his incredible body transformation.
The Nova FM radio host shed a whopping 5kg in 29 days after taking part in Sam Wood's 28 day challenge.
"I hardly recognise the great man, look at him," Sam said.
The routine involves working out at home for just 28 minutes a day as well as following a variety of healthy recipes.
But Sam warned the 38-year-old not to go too crazy over the Easter break.
"I'm bloody proud of you. But let's not undo all the good work over Easter, but enjoy yourself."