The TOWIE star dazzled in a cute black skater frock as she joined co-stars including Chloe Lewis and Joey Essex at the bash on Tuesday night (14 April).
Love her look?
Good news! We know where you can get her EXACT look. Jess was wearing a dress from her very own Lipsy London collection, available here for £60.
It was a busy evening for Jess as she also stopped by Lauren Pope's launch party for her new In The Style collection, held at a London hotel.
Jessica was recently unveiled as the first-ever celebrity face of Ann Summers' swimwear. You can check out her gorrrrrgeous campaign shots over here.
Why is Jess famous?! Check it out!