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