The petite actress, 24, has every reason to show off her body at the moment after months of intensive training and healthy eating.
Dressed up to meet friends at the Bellissimo Brunch Club at Rosso restaurant (June 30) - owned by Manchester United footballer Rio Ferdinand - Chelsee tweeted a picture of herself looking smokin' hot in the purple dress.
Next to a series of selfies, she wrote: "I'm ready @b_brunch #belissimobaby."
Throughout the past few months, Chelsee has posted pictures of her workout regime - including some fitness sessions with bestie Tulisa.
Just a few days ago, she told Reveal: "I'm not confident with my body. I don't think I've ever once been confident in my body. I don't think I ever will be, but I think that's just a girl with insecurities.
"I'm training at the minute," she added. "I've got a personal trainer back in Manchester and he's brilliant. I'm just trying to keep on top of it, but it's hard with work trying to keep it up and maintain it."
We can definitely say that the hard work has been worth it, Chelsee!
Do you think Chelsee looks good in the purple bodycon dress? Tell us what you think below!