This Avril Lavigne photo contains
costume d'affaires and costume d’affaires.
There might also be
demoiselle d'honneur, demoiselle d’honneur, robe costume, robe complète, frac, manteau de queue, queues, cravate blanche, cravate blanche et la queue, robe longue, tailcoat, tail coat, tails, cravate blanche et queues, habit, robe pleine, and queue de pie.
Avril did an interview on the Australian breakfast program Today and she revealed she's coming to Australia for her tour in May/June!!! (Be Happy Nate :D)