Rita Ora, Hugh Grant @ Unicef Halloween Ball

Jemima Khan poses for photographers on arrival for the Unicef Halloween Ball in Mayfair, central London. (AP)

Hugh Grant dressed as a wild animal in a tan onesie and furry headdress. (AP)

Poppy Delevingne (AP)

Rita Ora made a late arrival wearing a Balmain jacket and thigh-high boots. (AP)

Greg Williams and Alice Temperley (AP)

Steve Coogan and Daisy Lewis (AP)

Arizona Muse (AP)

Jessie Ware (AP)

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