The glamorous band never fail to impress when it comes to the style stakes and last night was no different as they hit the stage in Bristol wearing coordinating black and psychedelic print outfits.
While all the girls looked fab (as per usual), our eye was immediately drawn to gorgeous Vanessa White, who rocked a figure-hugging PVC dress and huge smile.
Mother-of-one Rochelle Humes opted for a PVC pencil skirt and crazy printed top, while Una Foden went for contrasting look with a PVC bustier top and teeny tiny patterned mini-skirt.
Mollie King was the only band member not rocking PVC, instead choosing a floaty chiffon black cropped top that gave us a glimpse of her flat tum.
They all looked v. glamorous but we can't help thinking they must have been freeeezing! In fact, mum-of-one Una joked before hitting the stage they were crazy not to be wearing coats.
Fifth Saturdays member Frankie Sandford wasn't there as she is on maternity leave following the birth of her first child Parker Bridge.
Aside from turning on the mall's Christmas lights, the band also performed a slew of their biggest hits for the huge crowd who turned out to see them despite the rather dreary weather. And they even belted out happy birthday to one big fan celebrating her special day.
Yesterday's festive event was to raise money for Help For Heroes. Tickets were free but attendees were encouraged to make a charity donation. Last year the switch on raised more than £20,000 for a local children's hospital.
Watch The Saturdays' video for 'Disco Love' below: