Britney arrow peek wardrobe fail}
Britney spear ❣showing her sensational curves}
Britney lance unintentionally revealing a bit too much}
Britney arrow ✔flaunted inadvertently}
Britney arrow ✔with a ❣wardrobe malfunction}
Britney spear caught
in an embarrassing slip-up}
Britney arrow✔accidentally ❣flashing on stage
Britney lance with a ❣accident of elegance
These are just a few examples. Feel free to mix and match the synonyms to create more unique content.