Rochelle Humes, Vanessa White, Una Healy and Mollie King all looked super glam in London's Leicester Square as they posed for the cameras without their bandmate.
Last week, Frankie revealed that she wouldn't be performing with The Saturdays until after her baby is born in October, and that it was on doctor's orders.
But the group are used to maternity leave, with Rochelle and Una having already taken time out to have their daughters.
Rochelle, who only gave birth to her little girl Alaia-Mai in May, certainly turned heads as she strutted her stuff in an M Missoni orange and purple patterned dress. She coordinated with black heels, a black clutch and a bright splash of orange lipstick.
Mollie, meanwhile, almost looked like a Bond girl as she walked the carpet in a navy strapless jumpsuit, black belt and matching shoes.
Una kept things cute in a grey patterned dress and a pair of suede grey ankle boots, while Vanessa oozed sophistication in a navy leather pencil skirt from Halston Heritage, monochrome blouse and black satin heels with ankle straps.
New movie We're The Millers stars Jennifer Aniston, who was also looking stunning at the premiere, and Mollie is definitely a fan.
She tweeted: "Can't believe we've just seen Jennifer Aniston in real life!! I've been watching Friends since I was 11!!! #DreamsComeTrue #WeWereOnABreak."
Mollie then added: "Great film too!! I was sat next to @UnaTheSats who definitely had the loudest laugh in there!! #We'reTheMillers."
Check out our gallery of Frankie's maternity style:
Copyright: Twitter The Saturdays
We're The Millers hits cinemas on 23 August.
Watch a trailer for We're The Millers below:
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