The singer uploaded the adorable picture of herself wearing the official Team GB t-shirt on Twitter.
Cheering on Great Britian in the games, Mollie posted her support beneath the photo.
However, the most frustrating of thing about the message was the first three words.
Mollie tweeted: "Off to bed in my new nightie!!! Come on TEAM GB!! More medals tomorrow please :-)"
Off to bed?! We wish we looked that flawless before going to bed!
The star seemed to be make-up free in the picture and still managed to look stunning.
Jealously aside, we love that Mollie is just as hooked on the Olympics as everyone else.
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Mollie is currently the cover star of this month's Women's Health and from the looks of the pictures; her toned stomach could give some of this year's Olympians a run for their money!
Mollie recently celebrated bandmate Rochelle Wiseman's marriage to JLS singer Marvin Humes last month along with the rest of The Saturdays; Vanessa, Frankie and Una.
The band's last single '30 Days' peaked at number 7 on the chart in June and are currently working on new material for their next album.