June 29, 2015 10:05 AM EDT

Taylor Swift and her famous posse got a private tour of London along the River Thames on Sunday.

The “Bad Blood” singer, 25, joined rumored boyfriend Calvin Harris, model pal Gigi Hadid and ex Joe Jonas for an afternoon on the river. But it wasn’t a double date, as the rumored couples were joined by model bestie Karlie Kloss – and Swift’s parents!

The squad was spotted smiling and laughing on the charter boat, decorated with the British flag.

The songwriter also took to Instagram to show off their private ride, sharing a snapshot from the day, in which she can be seen with her arms wrapped around Harris.

She joked in the caption, “Little known fact: Karlie is secretly an unofficial historian/London tour guide. Kind of.”

On Saturday night, Swift kicked off the group’s fun by inviting several of her buddies out on stage during her 1989 tour stop. She performed in front of an audience of more than 65,000 in Hyde Park, writing on Instagram that the crowd “went on forever, as far as I could see in each direction.”

The artist first brought on Hadid and Kendall Jenner, followed by tennis star Serena Williams. She also brought out model mates Martha Hunt and Kloss. Last but not least, the starlet introduced British model-actress Cara Delevingne.

Monday night, Swift takes her show to Dublin, Ireland.

This article originally appeared on People.com

Contact us at letters@time.com.

Read More From TIME

Related Stories