The celebrities and their partners are now 16 days into the ultimate race, and in tonight's episode (4th September) they must travel from São Paulo to Tigre in Argentina.

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In the next leg of their race, the intrepid duos will be faced with negotiating border crossings, new countries, different currencies and customs, and switching from Portuguese to Spanish - but do husband duo Scott Mills and Sam Vaughan have what it takes to make it to the checkpoint?

Last week saw the pair reach breaking point, as they felt there was no way they could catch up with the others after being set back by 24 hours, but they managed to eventually claw their way to the checkpoint in time.

As they compete alongside the likes of Kelly Brook, Jeff Brazier and Kola Bokinni, here's everything you need to know about Scott Mills and his husband Sam.

Who are Scott and Sam?

Scott Mills and his husband Sam stood next to each other in a t-shirt and shorts with red backpacks, smiling ahead.
Scott Mills and his husband Sam. BBC/Studio Lambert/Hans Georg

Relationship: Husbands

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From: South Hampton and south Wales

Jobs: Radio DJ and audio producer

Scott Mills is a radio DJ and presenter, best known for hosting BBC Radio 1 from 2004 to 2022. Nowadays, fans can tune in to hear him on BBC Radio 2.

He is taking part in the race alongside his husband Sam Vaughan, who is an "audio producer and branded content freelancer", who met Scott at a Welsh radio event in 2017.

Scott described the heat as "the hardest thing". Speaking to Radio Times magazine, Scott said: "It was nearly 50 degrees when we arrived in Brazil and super humid. I was constantly drenched.

"It was like a reverse honeymoon because we got married in Spain shortly after we got back."

Why did Scott and Sam want to take part in Celebrity Race Across the World?

When Scott and Sam were first asked to take part in Celebrity Race Across the World, Sam described it as "a no-brainer".

"It's an opportunity where you can just switch off in the world and see places that you've never seen before," he explained in a new interview with the BBC.

"You'll probably go to places that you wouldn't choose to go - if you look at a map, you probably wouldn't go, 'Let's go here.'

"Scott loves his travel magazines, so Scott will plan our holidays, he likes to go to new places, but this is probably going somewhere that we will never go to again. And it's just seeing parts of the world together."

Scott also wanted to "throw" is phone away "for a bit". "I wouldn't be able to get to do this again," he said.

Celebrity Race Across the World continues on BBC One and BBC iPlayer on Wednesdays at 9pm.

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