He is set to tie the knot with Game Of Thrones star Sophie Turner – although the couple are yet to announce a wedding date.
And Joe Jonas is keeping fighting fit while filming The Voice Australia Down Under.
The 28-year-old was spotted taking part in a gruelling boxing session in Bondi Beach on Thursday.
Shredding for the wedding? Joe Jonas shows off his physical prowess during gruelling boxing session in Bondi ahead of nuptials to Game of Thrones star Sophie Turner
The pop star was put through his paces by a personal trainer.
Keeping warm in the chilly Sydney weather, the curly haired star covered up his fit frame from the elements in a black Thrasher tracksuit.
He also covered his head with a baseball cap.
Joe is residing in a mansion in the area while her films the live shows for The Voice.
His fiancee is yet to join the American star during his business trip.
Joe recently told TV WEEK magazine that he and Sopie, who stands a statuesque 5ft 9in, ‘haven’t dived into planning’ their wedding yet, but it’s a priority.
‘In due time, we’ll get into it – and then get a lot of help! But we’re very happy,’ Joe said a few weeks back.
He told the publication that he and Sophie couldn’t resist going public with their engagement last October, figuring that her blingy ring would give away the obvious.
‘We knew it would get out if she was walking around with the ring on her finger so we tried to be timely about it, but the emotions took over,’ Joe revealed.
Meanwhile, Season 7 of Game Of Thrones wrapped last year and Season 8 isn’t due to bow until 2019.
But the beautiful Brit isn’t giving away any new plotlines, according to Joe. ‘I’m a big fan of the show but they don’t tell anyone anything – not even her. They keep a tight lock on it,’ Joe said.
But he did reveal he’d ‘love a cameo’ on the show, which has featured surprise performances from musicians Ed Sheeran, Snow Patrol’s Gary Lightbody and Will Champion of the band Coldplay.