Matt Damon caught smoking a cigarette while chugging a beer with radio host ...

He is required to be fit as a fiddle for his energetic roles in high-octane movies such as The Bourne Identity.

But on Saturday, Matt Damon, 47, was seen puffing on a cigarette and chugging down a beer alongside radio host Michael 'Wippa' Wipfli and friends while spending time on the Gold Coast, Queensland. 

Matt looked to be having a ball while he puffed away and sipped on a Stone & Wood Pacific Ale.

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That's a bit naughty! Matt Damon, pictured, was busted puffing away on a cigarette while enjoying beers with radio host Michael 'Wippa' Wipfli in Queensland over the weekend

An unshaven Wippa, who co-hosts the Fitzy & Wippa breakfast radio show in Sydney, looked thrilled to be in the company of the A-list actor. 

At one point, Matt took off his sunglasses and held up his beer as he hugged a female friend.

The Ocean's Eleven star has certainly adapted well to life in Australia, enjoying frequent trips Down Under.

 Matt is close friends with Byron Bay local and fellow A-lister Chris Hemsworth, 34. 

Cheers: An unshaven Michael 'Wippa' Wipfli (second from left), who co-hosts the Fitzy & Wippa breakfast show in Sydney, was seen enjoying time with Matt (second from right) and pals

Cheers: An unshaven Michael 'Wippa'

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