The reality star looked gorgeous and showed off her impeccable taste for fashion as she joined a host of celebrity guests in Sevenoaks, Kent to celebrate The Haywards Motor Group 20th anniversary.
Sam went for casual chic at the private party, where Blue and Rylan Clark were scheduled to perform.
Making a fashion statement, the 22-year-old rocked a black T-shirt with the words 'Ain't No Wifey' emblazoned across it, and was all smiles as she posed for photos.
The Minnies Boutique owner teamed her tee with some cute and bang-on-trend tartan trousers.
With her hair in a updo beehive, Sam completed her look with simple black heeled sandals and neon nails.
Sam, who is preparing to jet off to Las Vegas to film a special two-part episode for TOWIE, was joined by her former co-stars Amy Childs and Harry Derbidge, and the trio looked happy to be reunited.
Amy stunned in a monochrome mini dress while Harry looked smart in a grey shirt and black trousers.
Blue, who had earlier performed at BBC's Last Night of the Proms in Hyde Park, London, looked dapper in their tailored suits.
Sam later caught up with band member Duncan James. Posting a photo to Instagram, Big Reunion star Duncan said: "Kisses with my girl @samanthafaiers1!"
Meanwhile, Sam said: "Was great to see Blue performing last night !! It's been a long time."
But the blonde kept close to her longtime friend Amy Childs, and the pair later posed for several snaps.
Also at the party was Daniella Westbrook and this year's Big Brother contestants, Hazel Sullivan and Dan Neal.