Halloween was six weeks or so ago but an inconvenient fact like that isn't going to stop Florence Welch if she has a plan. Flo wants all attendees of the upcoming O2 gig on the 12th of December to dress up - and she's even prepared a list of themes which she considers suitable.

These are: Spectrum, Chaos, Clowns, Glitter, Heaven, Hell, Love, Blood, Flowers, Graves, Ceremony, Mischief, Mania, Kings, Valentines, Glamour, Banshees, Psychedelic, Water, The Sea.

Clowns, Blood, Mischief? This sounds more like Slipknot concert than Florence + The Machine. How on earth are you supposed to theme your outfit on the concept of Spectrum, among others?

In the interest of fairness, Florence and her band will also be dressing up in their fineries for the gig - which is completely and totally sold out.