The 'What About Us' singer looked gorgeous in grey trousers and a leather cropped top at the star-studded launch of the Tia Maria Music Room at London's Century Club on Wednesday evening (12 June).
Vanessa teamed her edgy outfit with black strappy heels, glossy hair and a statement red lip for maximum impact.
The pop star was without her Saturdays band mates Mollie King, Una Healy, Frankie Sandford and Rochelle Humes (who is still on maternity leave), but she had no shortage of famous faces to pal up with on the night.
Made In Chelsea stars Caggie Dunlop and Ashley James were also at the musical night. Caggie looked fresh and summery in her monochrome ensemble paired with glossy blonde beach hair, while Ashley wore a cute printed dress and styled her locks in a messy updo.
JLS singer Jonathan'JB' Gill and his girlfriend Chloe Tangney were also seen enjoying the night of music and cocktails at at the Century Club's Green Room alongside Doctor Who star Jenna Louise Coleman, Take Me Out: The Gossip's Zoe Hardman, Russell Tovey, Gemma Cairney and actress Oona Chaplin.
Brit Award-nominated singer/songwriter Laura Mvula - who is the Tia Maria Music Room curator - gave a performance of songs including her hit track 'Green Garden', before retreating to the bar where she enjoyed a Green Garden cocktail named in her honour!
Vanessa clearly had a good night as she tweeted: "Great set from @lauramvula at the @tiamariadrink music room! Love her voice! Nice cocktails too!"