CHART-topping pop act G4 felt G-force - when they launched a rollercoaster fitted with "big boy" seats for larger-than-average fun-seekers.
The slim-line singing quartet - including former Huddersfield student Matt Stiff - sampled the thrilling experience of G-Force, the first ride in the world to use a revolutionary hip restraint system catering for adrenaline junkies of all sizes.
Crowds gathered below the £3m ride at Drayton Manor Theme Park, near Tamworth, Staffordshire, to watch G4 sing their version of Frank Sinatra's My Way from the front car.
The screaming band members were then propelled through high-banked twists and turns at speeds of up to 45mph and at heights of more than 20 metres.
Matt studied music at Huddersfield University and was back in town last month.
Matt, Jon Ansell, Michael Christie and Ben Thapa were joined by 19-stone Dave Sargeant, who had been hand-picked to test the ride on behalf of outsize Britons.
The 39-year-old trucker said he was unable to use other upside-down rollercoasters because his 56in chest will not fit under normal over-the-shoulder restraints.