Watch her slay. Last year Beyonce chose a jeweled Givenchy “naked dress”, and this year she went for another Givenchy gown - this time an embellished latex. - Rosie Kelway, writer
Emma Watson used the opportunity of the ‘fashion in the age of technology’ theme to wear a Calvin Klein dress made from recycled plastic bottles. I love the elegant off-the-shoulder look, with the twist of trousers underneath. - Lucy Casley, design and digital assistant
Mary-Kate and Ashley Olsen nailed not trying too hard – I love the slouch of their dresses among a sea of skin tight looks. - Danielle Clausen, editorial assistant
There was no epic fashion moment for me (definitely missed Rihanna...), but Alexa Chung looks like she'll have a heap of fun in this striped sequin pyjama style suit by Thakoon. - Zoe Walker, associate editor
I like the retro-future aspect of Zendaya's Michael Kors gown, and the Paco Rabanne/Vidal Sassoon style hair tops it off well. - Dan Ahwa, fashion editor
Zayn Malik nailed it thematically in a literal sense with that robot arm. - Guy Coombes, photographer
Solange in pleated David LaPort.
FKA Twigs wears Atelier Versace.
Florence Welch in Gucci sequins.
Saoirse Ronan in an embroidered feather gown by Christopher Kane.
In a sea of metallic Balmain gowns, Cindy Crawford stood out for looking sexy and sophisticated. - Amanda Linnell, managing editor
I like when people make fun of serious situations, and Jenni Konner and Lena Dunham of Girls dressed as mini Jenna Lyons pretty much takes the cake – plus, you can never go wrong with a sleek black suit. - Jessica Beresford, digital producer
Claire Danes' Zac Posen fibre optic woven organza gown featured 30 mini battery packs underneath.
For a while it seemed everyone was choosing the 'machine' part of the theme as the crowd became a sea of hard fabrics (like plastic bottles bobbing in the ocean). Just as I was despairing the lack of anyone taking the soft 'by hand' approach, salvation came in the most unlikely of places. Lorde left everyone else to her signature dark lips and literally floated down the carpet in wafts of faintly pastel coloured Valentino tulle. Rebecca Wadey, wellbeing editor