Irwin and Prince Williams Aussie Moment Goes Viral

 delighted fans with a very Australian exchange with during a public appearance in London.

The wildlife conservationist was filmed stepping off a specially branded electric double-decker bus alongside the Prince of Wales before casually turning to the royal to say: 'Yeah, no worries.'

The quintessentially Aussie response quickly caught fans' attention, with the pair appearing relaxed and friendly as they walked together to greet waiting media.

The 22-year-old's trip to the UK also explains .

Instead, Robert was representing Australia at Prince William's Earthshot Prize Impact Assembly, held at London's historic Guildhall.

William, 44, travelled to the venue aboard a special electric bus bearing the route number '2030', marking the 3,000th electric bus to join the fleet.

Robert and the future King were joined by two young environmental campaigners before delivering a keynote address celebrating the growing impact of his Earthshot Prize initiative.

Founded in 2020, the Earthshot Prize awards £5million each year to innovators developing solutions to , while also providing mentorship and global support.

Addressing finalists, previous winners and global business leaders, William said he was feeling increasingly optimistic about the world's environmental future.

'I always hoped The Earthshot Prize would show the world evidence of progress - progress towards what felt like immense climate and nature goals,' he said.

'Today we have more than belief. We now have proof. Solutions are working. Capital is moving. Policy is shifting. Partnerships are forming.

'Our finalists are calling. Progress is starting to build on itself. This is why I feel more optimistic than ever.

'Not because the challenge is smaller than it was, not because the science is less urgent, but because the proof is stronger than ever before.'

Robert, who has become one of the most recognisable young faces in global conservation, was equally glowing in his praise for the Prince.

'It's always wonderful catching up with Prince William,' he said.

'The last time I saw him, he FaceTimed me during Dancing with the Stars to wish me well on that. I got to represent conservation to a stage I never thought I would be doing. So it was great.'

The Dancing with the Stars winner said William's commitment to environmental issues was impossible to ignore.

'I'm always reminded of his leadership and his authentic passion. The Earthshot Prize would not be the success that it is without someone at the helm who really cares, and that is him,' Robert said.

'He cares very, very deeply, and someone with his platform that is just mobilised, creating as much change as possible, is fantastic.'

Robert, who attended the 2024 Earthshot Prize ceremony in Cape Town and last year's Impact Assembly in London, added that William's dedication had remained consistent over the years.

'He's been doing this for a very long time, and I really think that he's seen firsthand what it is that the world needs,' he said.

'I think it's just fantastic that he uses his platform to unite people. I think that is very, very important.

'You can't fake passion. When you see it, it's undeniable. That's every interaction I have with him.'

Robert also confirmed he will travel to Mumbai later this year for the sixth annual Earthshot Prize ceremony and revealed he is still hopeful Australia could eventually host the prestigious event before it concludes in 2030.

'I would love Australia. I hope so. I have all of my fingers crossed,' he said.

'I think it would be fantastic. But for now, the sights are set on Mumbai. Australia would welcome Prince William with open arms at any point.'

Speaking during London's sweltering heatwave, Robert said the unusually high temperatures served as a reminder of why the environmental work remained so important.

'I mean, it's a reminder of what we're here for, isn't it?' he said.

Reflecting on the day's event, Robert said seeing so many successful environmental projects gave him hope for the future.

'It's very reassuring. The world is moving in the right direction, and we have to take the wins, we really do,' he said.