Casey took the snap yesterday afternoon (31 March) while getting ready for a night out and, along with the lack of slap, she is also sporting a head of rollers!
The glamour model still looks seriously glam in the photo (we're not jealous, honest...) and is blowing a kiss at the camera.
Posting the snap online, Casey told her followers: "Getting ready for tonight's shenanigans! No make-up and rollers! @SLEEPROLLERS need big rollers now, love a big wave!"
Casey was heading to a glitzy party held by fashion brand Piamichi and was looking forward to catching up with her celebrity pals.
Liberty X star Michelle Heaton also attended the bash, although it seems she didn't have the easiest time getting ready...
Michelle, who gave birth to her second child earlier this month, tweeted: "Doing my eye make up while holding AJ and stopping Faith having a 2yr old tantrum is proving very difficult! #wonkymakeupeyes."
Are you brave enough to go without make-up in Twitter pictures? Tell us below, as the best comment from across the website each week wins £50!