Millie Mackintosh and Professor Green host engagement party

and

celebrated their engagement in style on Friday with a party at the Groucho Club.

and

, whose real name is

, were joined by a host of their friends at the London venue for a night of partying and congratulations."Love to everyone who made this night so special x," Tweeted

, proving the night had been a success, before the couples' guests began tweeting their messages of thanks on the social networking site.Bride-to-be

, 23, was as elegant as ever in a white snakeskin dress that featured sheer panels at the collar and hem and accessorised with bright red lipstick and scarlet stilettos. Professor Green, 29, kept his look more casual, choosing jeans and a printed white jumper for the occasion.

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Millie's

co-stars, including fashion blogger

and PA

, helped the star celebrate her engagement.T-shirt designer

was also seen leaving the Soho venue with fellow

star

.Singer

, who collaborated with

on their track

, also joined the party as did musician Elle Eyre. Rapper

, whose real name is Elliot John Greave, brought his Australian fiancée Erin McNaught to the bash.

and

confirmed the

via Twitter when the makeup artist and reality TV star posted a photo showing off her beautiful double-banded engagement ring."If I could scream loud enough for the whole world to hear I would," she wrote next to the picture.