The superstar songstress got involved in the popular 'Throwback Thursday' Twitter trend by uploading a snap of her wearing a racy pink bra and matching knickers on stage in the early noughties.
Britney, 31, can be seen flaunting her fab toned figure in the underwear set and completed the sexy ensemble with a pair of fishnet stockings to tie into her scantily clad image on tour.
She captioned the photo: "#TBT this was one of my fav tour outfits! What are some of yours?"
The picture was taken during her 2004 'Onyx Hotel Tour', which supported her fourth studio album, In My Zone and was known to be one of her most controversial concerts at the time, as Britney even incorporated a kiss with one of her male dancers into her routine for the track, 'Breathe On Me'.
No wonder the outfit is so risqué!
We have to admit that of all the tour costumes Britney could have chosen as her favourite from over the years, we are a little surprised that she picked this one. What about her amazing leather bodysuits or the belly dancer-esque ensemble she wore at the MTV Video Music Awards?! Okay, so the latter maybe wasn't technically a tour costume, but we loved it!
But there could be more revealing outfits on the way, as the blonde pop star is currently working on her eighth studio album and has also announced that she will be performing a residency in Las Vegas later this year.
Just think of the kind of costumes she might wear in Sin City!
What is your favourite outfit Britney has worn over the years? Let us know in the comment box below, as the best comment from across the website each week wins £50!
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