The rest of the gorgeous girlband – Rochelle Humes, Una Foden, Vanessa White and Mollie King - performed as a four-piece at the inaugural Leicester Music Festival, wowing the crowd with a setlist of their most famous tracks.
Their performance came the week after Frankie tied the knot with footballer beau Wayne at a beautiful ceremony in Bedfordshire.
The entire group were among the guests who watched Frankie and Wayne become man and wife, while the happy couple's baby son Parker Bridge was guest of honour.
So far, there's no word on where the Bridges have chosen to honeymoon, although we're guessing it's somewhere luxurious and hot!
Frankie did tell her Twitter followers last week she was looking forward to jetting away, saying: "Never been so full of emotion. what roller coaster! So happy. I can't wait to chill out with my husband. Bring on the honeymoon!"
She also hinted she'll be sharing a wedding dress picture soon. Well, whenever she manages to get her hands on one!
"Don't worry," she tweeted. "I'll share a pic when I get one…"
Frankie and Wayne became engaged in April last year. They welcomed their first child together, Parker, in October.
While Frankie was off enjoying the first few days of wedded bliss, her bandmates joined a string of other music stars at the first-ever Leciester Music Festival .
X Factor winner Sam Bailey, boyband Union J and the fab Tinie Tempah were all in attendance at the star-studded event over the weekend, which enjoyed gorgeous temperatures.
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