Party Dressing Without The Dress: Alternative Styles To Try

Alexa Chung proving you CAN wear your pjs to the party. In Prada at the Fashion Awards.

OK, it technically has a dress in it, but Emma Watson adds quirk by throwing it over trousers at the White House Correspondent Dinner.

Adwoa Aboah in Balenciaga at Glamour's Women of the Year.

Diane Kruger in Chanel at the Met Gala.

Lady Gaga in what shall henceforth be called a caped drouser, in Brandon Maxwell at the Academy Awards.

Charlize Theron in Dior at Cannes Film Festival.

Alexa Chung again, in Thakoon at the Met Gala.

Sienna Miller in Prada at The Lost City of Z screening.

Pandora Sykes in a statement Magda Butrym blazer at London Fashion Week.

Marion Cotillard at the photocall for Assassin's Creed.

Zoe Kravitz in Dior at  The 21st Annual Critics' Choice Awards.

Janelle Monae putting the sass in Sass & Bide at The BET Awards.

Eva Herzigova taking inspiration from The Colonel to great success at The Fashion Awards.

Suki Waterhouse in Roberto Cavalli at The Hollywood Reporter's Next Generation Celebration.

FKA Twigs at the 8th Annual GO Campaign Gala. Top marks for couple coordination.

If a dress is see-through, is it a dress? Can boots be trousers? Can one wear just big knickers to a party? Cara Delevingne made us ask all the questions, wearing Alexander McQueen at the European premiere of Suicide Squad.

Rosie Fortescue at the BAFTA Rising Star party

Leandra Medine chairs The Whitney Studio Party.