Rebel Wilson may have lost 30kg over the course of 2020, but she gained a huge amount of confidence.
The 41-year-old star took to Instagram to show off her new figure by stripping down to a tight black leotard and shared another very cheeky snap revealing the thong bottoms.
The star has been shooting The Almond And The Seahorse in London and sharing behind-the-scenes snaps from set.
Rebel shared some of her exercise and nutrition tips in an Instagram Live last year, as well as opening up about the emotional side of her journey.
“It was the emotional stuff about realising why I was overeating, why I was emotionally eating and trying to solve that, that was the biggest lesson,” Rebel told her fans.
Rebel explained turning 40 was what initially triggered her desire to live a healthier life, particularly as she started to think about things like her fertility and made the decision to freeze her eggs.
“As all career women would know if that is something that interests you approaching 40 is a good time to do it,” she said.
“So I was thinking about fertility and thought I am going to do this and get healthy.”
Rebel said things started with a professional detox to help with the amount of sugar she was eating.
“I have the biggest sweet tooth. It is my weakness,” she admitted.
Rebel's Australian trainer Jono Castano shared some of his most important tips with Yahoo Lifestyle.
"I am such a big believer in starting as soon as you decide to change your habits," Jono said.
"So for me, starting a new lifestyle in a fresh year or even a fresh week isn't something I would suggest."
He adds that you should start as soon as you are "comfortable and ready", but stresses to never go "too hard too fast".
"Otherwise, you aren’t setting yourself up for success. It's never too late to make a change for a healthier lifestyle and these don’t need to be drastic."
Jono, owner of Acero Training Series, suggests starting with small habits every day that you can eventually add on to.
"For example, if you wanted to start running you could add five minutes a day to your routine," he explains. "As the weeks go on, you'll get fitter and feel five minutes is too easy so you will push to 10 minutes. Eventually, you could run non-stop for 45 minutes.
"But, imagine adding that 45-minute run when you aren't conditioned to. It sounds daunting, right? Small daily habits and starting as soon as you decide to is the key, and using a device like a Fitbit to track your progress will highlight how you’ve improved over time."
Never miss a thing. Sign up to Yahoo Lifestyle’s daily newsletter.
Or if you have a story idea, email us at email@example.com.