Yesterday (9 November), Caroline turned 36 years old and to mark the occasion, The X Factor host couldn't resist embarrassing herself and her twin sister by digging into the family albums.
Nothing says it's your birthday without an old school pic from when you were back at school, right?
Taking to Instagram, Caroline shared the gem with fans while wishing her sister Jody a happy birthday too.
She said: "To my good angel.... I couldn't live without you... Happy birthday to the good twin @jodyflack (remember these gums)."
Oh Cazza, you look so sweet!
As well as taking a trip down memory lane, the birthday girl enjoyed a lazy day all to herself after seeing in her special day with Olly Murs and friends the night before. Following The X Factor's live results show, the pair had headed out for a night on the town and after seeing their snaps and videos, we're wishing we got an invite!
Taking to Twitter, Olly shared a picture of Caroline with her birthday cake, wishing his "best bud" a good'un as she turned a year older.
He also tweeted a video of himself and Caroline on the way home after having one too many, showcasing their vocal talents.
And who knew Caroline could actually sing? Simon Cowell you may have missed a trick here...
In the clip (originally posted by Caroline to Instagram), Olly can be seen taking on Craig David's "Rendezvous', with Caroline adding in a few cheeky lines here and there. If only we got to see the whole song...
Olly tweeted alongside the video: "Wow!! How drunk were we caz!! @CraigDavid marks out of 10 please?!"
Craig's thoughts? The duo may just have the X Factor... "@ollyofficial you always got soul bro," Craig replied. "But hearing @carolineflack1 do the octave higher sealed it for the 10...with riffs at the end."
The pair's fun-filled night out comes after Caroline recently confessed her relationship with Olly isn't purely platonic. We so saw that one coming, you?
"It's a weird chemistry," she admitted. "We have the innate understanding of one another, we don't fancy each other and yet we don't not fancy each other. We're not girlfriend and boyfriend, yet we're not totally platonic either."
Wait until Simon gets hand of this, he's been itching to get the two together!
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