The British twins, 37, who host the travel series Fantastic Friends, shared photos of Williams, 63, and themselves on Instagram earlier this week.
They were seen posing in front of the Singapore skyline, as well as in Chinatown. They also tried their hand at making teh tarik and a lion dance. Oliver wrote: “We had so much fun in this brilliant destination. The food, the culture, the laughs – all brilliant.” James said: “Fantastic Friends Season 2 is well under way, we’ve had a great time in Singapore with our on-screen dad – Mark Williams. Lots of laughs as always. This season is going to be wicked.”The Phelps are best known for portraying Fred and George Weasley in the Harry Potter film series and now work as a duo on other projects, including a podcast titled Normal Not Normal.