Wearing matching short skirts in different colours (you know, like they do), Frankie was the only Saturday not to wear a white vest.
Instead she wore a little white crop top while on-stage at the O2 Arena, for the Transformation Trust’s 1st birthday party.
Frankie is getting a bit of a reputation for flashing the flesh – on purpose and by accident.
Frankie performed with bandmates Vanessa White, Rochelle Wiseman and Una Healy – poor Mollie King missed yet another gig due to contracting cellulitis.
All of the girls looked amazing – click here to see photos.