Sienna Miller Just Introduced Us All To The One Thing We Need This Party Season

It's not even December, but judging by the swarms of trick-or-treaters this Halloween, Christmas party season is going to be major. And if you're wondering how to get a head start, two words: Sienna Miller. The actor attended Gucci's Love Parade - the mega-brand's star-studded show staged on Hollywood Boulevard - and arrived wearing what can only be described as the ultimate party outfit: a sequinned blazer.

With its disco shade of silver (and groovy baby lapels), this sequinned blazer could carry you through the entire 12 days of Christmas. Think about it. You can wear it as a minidress (à la Sienna), with wide-leg jeans for the office party and flung over a sexy slip to watch the ball drop. It's the ultimate multitasker and, styled right - i.e. on the roomy side so it doesn't read as 'mother-of-the-bride' - will make you wonder why you never thought of it before. Hush has a great gunmetal version for £129; try it with a ribbed vest top and baggy jeans. Maje's, made from a sequin-threaded tweed fabric, is perfect for adding subtle shimmer.

Note that if sequinned tailoring feels a little too Strictly, there's always its slightly less extra cousin, the sequinned shirt. Rat & Boa's, which is tantalisingly sheer and threaded with iridescent sequins, feels very New Year's Eve. Miller's other trick - of sheer tights and platform sandals - is another winner for party season. Wear the combo with a sequinned blazer and you'll be the talk of the town.