Rochelle Humes led the way, sizzling in a red top and tailored black trouser suit. She teamed her outfit with a statement necklace, sandals and a pillar-box pout.
Mollie King, who was dressed in a monochrome jacket, white top and black leather skirt, followed close behind with her boyfriend Jordan Omley.
The couple were all smiles and held hands as they made their way to the event. Mollie and Jordan even coordinated with some funky headwear!
Vanessa White, meanwhile, looked super glam in a sheer black top and black miniskirt while toting a gorgeous soft grey leather handbag.
With Frankie Sandford off on maternity leave, Una Healy was the last Sat to make her entrance.
Like her bandmate Mollie, the yummy mummy also opted for a monochrome ensemble and carried a guitar.
The girl group's album playback party went off without a hitch and they were even joined by a special guest - reggae star Shaggy!
Not only did the Saturdays cosy up with Shaggy for a few pictures, Una even got out her guitar and they joined him for an impromptu jamming session. Amazing!
Watch The Saturdays and Shaggy's session here: