Joanne Black @ the Serpentine Pavilion Party - © Frederic Aranda

Where: Hyde Park, London

Joanne Black Style: Short Alexander Wang 40s-style dress, Stephen Webster White Earrings, blue and yellowy gold short Osman jacket, white YSL heels and a Prada handbag

Set against the glorious Hyde Park, Jean Nouvel’s red and black steel Pavilion – complete with dance floor, bar and table tennis tables – was the perfect location for a what has to be one of my favourite parties of all time.

The fact the sun shined long into the evening meant this was a real summer party – with superb style on show at every turn. Nicky Haslam gets my vote for coolest look of the night. His fantastic turquoise suit was a real statement piece and his spruce green T-shirt, black belt, beads and boots were a great combination.

When I think back to the stand-out fashion, Nicky was in good company. Stephen and Anastasia Webster looked great together – him in a cool grey double-breasted jacket with a blue pinstripe running through it and her in a stunning white halterneck dress with what looked like roosters in circles scattered across it. John Rocha and his daughter Simone looked effortlessly cool. Simone wore a short black blazer, white shirt and clogs and John accessorised his suit with trainers. Jared Leto added a funky edge to proceedings with a black and white jacket, bleached blond spiked hair and trousers with interesting detail down the side. And David Bailey showed us just what a legend he is with a denim jacket with brown leather collar, colourful white and green Hawaiian-style shirt and beige hat with the word ‘fashion’ written across it.

Mention also has to be made of those lovely ladies: Lily Cole, Alice Temperley and Bianca Jagger. Lily stepped out in a warm purple Temperley dress with gold detail around the bust, Alice looked striking in a cerise pink outfit, with a white hat and silver clutch, and Bianca Jagger gave her black taffeta-style dress and short jacket some real sparkle with an pair of emerald green earrings.

If I had to choose one highlight, however, it would be the surprise performance by Dizzee Rascal who wowed us all with his musical talents – and sharp style as he opted for a grey suit, white shirt and amazing shades for his turn in the spotlight.

Hanna Folkesson with her Paul McCartney Plectrum & Joanne Black

Where: Battersea Power Station
Joanne Black Style: Short Peter Pilotto dress in purple with rust and green running through it, with Nicholas Kirkwood ankle boots

Power stations aren’t usually associated with lavish parties and tuxedos, but then Battersea Power Station is no ordinary power station. This cool venue was home to host Kevin Spacey, the great and the good of the theatrical world and the legendary Paul McCartney for one night only. And what a night it was…

Nights on the party circuit are typically spent admiring well-styled women and their fabulous outfits. But it was the men who shone through at this star-studded spectacular. Ronnie Corbett looked so cool in a fab electric blue velvet jacket with a black lapel. Evgeny Lebedev wore a great black and white tux-style jacket and trousers with a white stripe down the side. Mark Ronson also opted for a tux-style suit (which became the look of the night together with an open shirt and no bow tie). And Jeremy Irons looked effortless in brown leather biker boots, beige jeans, a navy jacket and cool aviator shades.

The men also gave us the stand-out performances of the night. Kevin Spacey delivered a hilarious speech (that man should be a politician) and Paul McCartney had the celeb world falling at his fee, belting out tunes such as The Long and Winding Road and Hey Jude, which he dedicated to Dame Judi – who was at the party with her daughter.

The Old Vic 192 Fundraiser – organised to raise money for the theatre trust and support Meat Free Monday – was a night full of surprises. From my table, I took part in the art auction and walked away with a fabulous picture by Sam Taylor Wood. And a friend and massive McCartney fan who came with me was handed the singer’s plectrum – and will no doubt be envied for many years to come for securing such an amazing musical memento.