The Coronation Street actress, 26, joined the current fundraising campaign for charity Cancer Research UK by posting a no make-up selfie on social media.
Thousands of women have taken up the cause, and Michelle became one of them yesterday (22 March) when she took to Twitter and shared a bared-faced picture of herself in bed.
And the soap star still managed to look absolutely beautiful.
Alongside the selfie, Michelle wrote: "Mooorning! #nomakeupselfie #breastcancerawareness show your support text BEAT 70007 It's so easy! Do your bit. X"
But the war paint was back on later that day when she went to Faces nightclub with fiancé Mark Wright and friends in Essex.
Posting a picture of herself with a pal, Michelle can be seen fully made-up, with a VERY short black jumpsuit on - no wonder Mark has made no secret of loving Michelle's perfect pins!
With the photo, she wrote: "Me and @RACHYCAKES3 spontaneous night out in Essex!!! #girlietime xx."
Michelle and Mark also supported his cousin Elliot at a boxing fight against fellow TOWIE star Lewis Bloor.
While at the boxing bout, Mark and Michelle posed for another selfie - this time with famous boxer David Haye.
The 'No Make-Up Selfie for Cancer Awareness' campaign has raised £2m for Cancer Research UK in the space of just a few days.
Have you posted yours yet?
Do you think Michelle looks better with or without make-up on? Tell us what you think below!