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Rich & Kat invited The Saturdays to ride on the very scary Saw rollercoaster with them. Una & Frankie were ill so couldn't accept the invitation, but Mollie, Rochelle & Vanessa came along for the ride.
However when Rochelle caught a glimpse of the terrifying ride, she decided not to take up our evening duo's offer, leaving Mollie & Vanessa as the only two members of the band remaining to take on the challenge.
Want to see how they got on? Check out the video and listen to Rich & Kat's interview with The Saturdays below: