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