Holly Valance and Mischa Barton look gorge at Serpentine Gallery Party, inspire our summer style

We've had a lesson in how to dress for a summer soiree thanks to Holly Valance and Mischa Barton.

Holly Valance, Mischa Barton,Serpentine PartyHolly Valance and Mischa Barton go glam for Serpentine Gallery Party. Copyright [Getty]

Plenty of stars headed to the annual Serpentine Gallery party in London last night, but Holly Valance and Mischa Barton were our two style stand-outs from the event.

Holly Valance embraced the metallic trend in a gold sequinned dress embellished with silver stars.

[Related story: Holly Valance pokes fun at weight comments, makes us giggle with Twitter photos]

The 29-year-old Australian star kept her accessories simple, wearing  a thin black belt, nude peep-toe heels and a gold sequin clutch.

She was joined by fiancé Nick Candy who was dapper as ever in a suit with his shirt open at the neck.

Holly Valance, Nick Candy, Serpentine PartyHolly Valance and Nick Candy were one stylish couple at the Serpentine Gallery Party. Copyright [Getty]

Mischa Barton went floaty but looked just as gorgeous in her floor-length gown.

We're taking style notes for the next time we need to look demure.

[Related story: Mischa Barton does a Lady Gaga as she poses with raw meat in Tyler Shields shoot]

Mischa Barton wore her hair in a loose up do and brought a pop of colour with her red lipstick.

She wrote on Twitter ahead of the party: "On my way to #serpentine with @Rachelbakewell ! So excited...I love being in the park and particularly visit the serpentine frequently."

Mischa Barton, Serpentine Gallery PartyMischa Barton looked lovely at the Serpentine Gallery Party. Copyright [Getty]

Nancy Dell'Olio was the other guest who really caught our eye.

She channelled Cleopatra in a silver head piece and full-on make-up.

Holly Valance's Strictly Come Dancing co-contestant Nancy wore a white halterneck frock and loved posing for the photographers.

Good for you Nancy, we'll take a note of your outfit for our next fancy dress party. Love. It.

Nancy Dell'Olio, Serpentine Gallery PartyNancy Dell'Olio was bold at the Serpentine Gallery Party. Copyright [Getty]