Wherever there's an awards show, there's a preparty — and the BAFTAs are keeping that tradition alive in London this weekend with some of the most glamorous fetes we've seen this year.

Just last night, everyone from Lupita Nyong'o to Poppy Delevingne showed up for a party hosted by Chanel. The night before, a bevy of British stars, including Poppy's sister Cara, and actresses Naomie Harris and Keira Knightley [1] turned out for a party hosted by Burberry. The brand dressed a number of stars who were in attendance — what else is a British celeb going to wear to a party in London celebrating their country's finest actors?

A look at all the stars and what they wore, below.

Lupita Nyong'o

The 12 Years a Slave star was pretty in pink at a BAFTAs preparty on Saturday.

Helen Mirren

The grand dame of English acting wore a trench coat decorated with little bits of sparkle.

Amy Adams

The flame-haired actress wore a trench coat at a preparty for the BAFTAs.

Poppy Delevingne

The glamorous model looked chic in a deep red lace dress at Chanel's BAFTA preparty.

Naomie Harris

The actress wore a spirited multicolored cocktail dress to Chanel's BAFTA preparty.

Cara Delevingne

The British model wore the British brand Burberry to the party.

Poppy Delevingne

Another Delevingne sister, another Burberry creation.

Keira Knightley

Keira also wore Burberry to the event.

Naomie Harris

The British actress also wore Burberry and posed for a snap with Marchesa designer Georgina Chapman.

Uma Thurman

The actress gave onlookers an updated take on the LBD.

Suki Waterhouse

The actress was among many guests at the party wearing Burberry.

Douglas Booth

The Burberry model and actor was sure to support the brand at this party.