Lily donned a figure-hugging black dress teamed with a pair of black studded heels to the bash, and wore bright pink and orange streaks in her platinum blonde hair.
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The young singer recently got to number two in the UK's Official Top 40 with debut track 'You Bring Me Joy'. Meanwhile Cocozza is set to release his EP The Motorcyle next month.
Other guests at the central London club included Misha B, who recently debuted her new single, and current X Factor act District3's Dan Ferrari-Lane and Micky Parsons.
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