She is killing it at the minute!
The songstress - who is KISS' newest ambassador - jetted to London from sunny Los Angeles and showed off her gorgeous glow at the swanky city bash, all while giving us heaps of wardrobe envy...
Leona ditched the fancy frocks and proved her fashion credentials in the seriously sexy one-piece that featured a ruched waist, billowing sleeves and an embellished waist belt.
The star looked like she had stepped off of a Fashion Week catwalk and teamed her svelte look with a pair of Kim Kardashian-inspired stiletto sandals.
She is famed for her bouncy, gravity defying tousles but Leona wore her locks off her face in timeless tight braids so her fluttery KISS eyelashes could do all of the dazzling.
The stunner was joined by TOWIE's Jess Wright and former model Samantha Fox at the glam event.
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