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