Gigi Hadid's 24th birthday party had an interesting dress code

How much denim is too much denim?

At Gigi Hadid's twenty-fourth birthday party the vibe was very much 'more is more.' Shunning the usual party dress code, the model opted for a low-key dress code: all denim everything.

Gigi aced a classic double denim look, pairing custom Levi jeans, which were subtly customised with '24' on the leg, with a frayed denim jacket, simple white crop top and Dr Martens.

The casual look may have seemed like an odd choice for the usually uber-glam model, but it all made sense when Gigi's celebrity guests started to arrive.

Younger sister Bella Hadid took a more nostalgic '90s approach to the theme, pairing blue jeans with a matching reconstructed corset and denim shirt. Very Britney Spears circa 2001.

Their mother, Yolanda Hadid, also opted for triple denim, putting her own chic twist on the dress code by wearing flares, a waist coat and fitted blazer.

Other denim-clad guests included models Ashley Graham and Olivia Culpo, who both wore oversized jackets as dresses and Hailee Steinfeld, who wore a two-tone tweed and denim co-ord.

Like at every themed party, some guests chose to ignore the dress code. Taylor Swift clearly hadn't got the memo and arrived wearing a floral Zimmermann dress and bargain £59.99 Mango jacket.