Tourists must have been rubbing their eyes on Thursday at the sight of school-uniform-clad Girls Aloud beauty Sarah Harding hot-footing it through London's South Bank at high speed.
The platinum-haired singer and actress had onlookers clicking away on their camera phones as she leapt over concrete benches and raced along the pavement.
Twenty-seven-year-old Sarah was busy filming St Trinian's 2: The Legend Of Fritton's Gold. She's reprising her role as teenage rebel Roxy for the second school-based comedy film in the series.
The new movie will also star David Tennant as the villainous Pomfrey, who runs a women-hating secret society. He pits his wits against the St Trinian's pupils as they compete to discover the 'legendary Fritton's gold'.
Photo: © Rex