STARS GET THE SUMMER PARTY STARTED

You know the summer’s started when it’s the Serpentine,” smiled Lady Kitty Spencer, elegant in an Alta Moda dress amid the glamorous crowd that flocked to London's Kensington Gardens for one of the society events of the season, the Serpentine Summer Party.

- MIRANDA THOMPSON

HELLO! was there too, as the annual event marked the 25th anniversary of the Serpentine Pavilion, which has been designed this year by the Bangladeshi architect Marina Tabassum.

The party's co-host, Cate Blanchett, looked striking in an oceanic design featuring a seashell-encrusted bodice by Dilara Findikoglu as she caught up with Bianca Jagger, who was sophisticated in a white suit.

Plenty of the award-winning Australian actress's fellow countrywomen were assembled in support: Isla Fisher was spotted deep in conversation with Alicia Vikander, who will appear on the London stage in Ibsen's The Lady from the Sea this September.