Charlotte, 24, turned up at the bash, held in London, wearing a gorgeous yellow dress from her own Nostalgia collection and she made sure all eyes were on her.
The Mustard Yellow Dress is available from InTheStyle, priced at £39.99, and Charlotte teamed hers with simple black sandals and a clutch bag.
Keeping her long hair loose, Charlotte added some soft waves and she gave her makeup some serious oomph with thick black liner and fluttery lashes.
Charlotte's party was held at Project nightclub and she had a great celebrity turnout. Her fellow CBB co-stars Mario Falcone and Louie Spence were there to support her, along with her Geordie Shore girls Holly Hagan, Sophie Kasaei and Marnie Simpson.
Fellow reality stars, TOWIE's Jasmin Walia, Danielle Armstrong and Georgia Kousoulou also showed their faces and it's fair to say everyone looked gorgeous!
Following the event, which was also thrown to celebrate the first anniversary of InTheStyle, all of Charlotte's pals were quick to congratulate her.
TOWIE's Danielle said: "Had an amazing night @Charlottegshore collection launch for @inthestyleUK, big love to the Geordie lasses and my Essex girls, you know who u are."
Geordie Shore's Holly, meanwhile, tweeted: "Love my girls so much @SophieKasaei_ @Charlottegshore @Marniegshore."
Meanwhile, earlier in the day Charlotte was pictured in a casual black dress, also from her range, and DM boots as she headed to the launch.
Do you like Charlotte's Mustard Yellow Dress? Tell us below, as the best comment from across the website each week wins £50!