She's following in the footsteps on the likes of Rita Ora, Alexa Chung, Ellie Goulding, Lana Del Rey at the agency.
So we're wondering, does this spell the end for everyone's (well, some people) favourite girl band.
The band's already had not one, not two, but three members have children.
Most recently of course, there was Frankie Sandford who just gave birth to a boy.
And if babies isn't a good enough reason to put down the mic, there's Rochelle Humes' fledgling TV career.
She co-hosted This Morning with her hubbie Marvin last month.
Not only that, but Mollie King has also just released her first collaboration with clothing brand Oasis - P.S. we love it!
Sounds like it may be the end for the band who gave us classic tunes like...All Fired Up.
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