At the weekend, it emerged the 32-year-old singer was heading for the divorce courts after just 18 months of marriage to her French husband.
But Cheryl put on a brave face to attend the launch of her friend’s new ‘boutique boxing gym’, KOBOX, in central London.
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Cheryl Fernandez-Versini at the KOBOX launch
It’s the first time the singer has been spotted out in public in three weeks.
Earlier in the day, the former Girls Aloud star posted a selfie taken during a training session with Shane Collins, who is the boyfriend of her PA Lily England, and the man behind KOBOX.
“K O’d by Shane,” she wrote next to the snap.
Cheryl later swapped her gym gear for a t-shirt, jeans and a designer coat, as she put her troubles behind to pose for pictures at the event.
While the couple are yet to publicly confirm the split, a source told The Sun: "Cheryl is divorcing JB on the grounds of his unreasonable behaviour. She has had enough of his jealousy.
“He didn’t like it when she had to spend time with other men and even became jealous when she was hanging out with her dogs.”
Meanwhile, another source is quoted as telling the Mirror: "In the end Cheryl realised she had married too soon and had been swept away by a bit of a whirlwind romance.
“Cheryl seems to want this over and done with as quickly as possible but it could be held up if she does have any talks with JB over a financial settlement.”
Despite her marriage woes, Cheryl is gearing up for bridesmaid duties at best friend Kimberley Walsh’s wedding.
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Cheryl and Kimberley Walsh
Her former Girls Aloud bandmate is to marry long-term love Justin Scott in Barbados later this month.
2. That outfit she wore for her first ill-fated day on 'The X Factor USA'(01 of18)
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Just... no. (credit:Getty Images)
3. That naff lottery photocall with her naff ex hubby(02 of18)
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The outfit! The dry ice! The husband! The sheer desperation! (credit:Getty Images)
5. The court case(03 of18)
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Back in 2003, Cheryl Tweedy (as she was then known) was charged with racially aggravated assault after being arrested at Guildford (Guildford!) club The Drink whne she allegedly hitting a toilet attendant. Cue a teary court appearance in Kingston (Kingston!) and a cream jacket from Dotty Ps. (credit:Getty Images)
6. The slashed trousers(04 of18)
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Oooh she'll catch her death etc, etc. (credit:Getty Images)
8. When she was bezzies with Posh(05 of18)
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Ok, so it only lasted a few weeks, but when Posh took Cheryl under her protective WAG wings at the 2006 World Cup (and simultaneously ignored the rest of the WAGS) it was all a bit 'Mean Girls' and we were in celeb bezzie heaven. (credit:Getty Images)
10. The chav years(06 of18)
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The white cap! The hoop earrings! The cropped top! Tulisa was watching (and waiting) in the wings. (credit:Getty Images)
11. The side boob(07 of18)
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Well, you truly haven't made it until you've flashed a bit of side boobage. (credit:Getty Images)
13. The gurn(08 of18)
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Because when Cheryl pulls an ugly, we feel a tiny bit better about ourselves (credit:WENN)
15. Her flirty tweets to Tom Daley(09 of18)
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"Congratulations @TomDaley1994.. You did us all proud.. !! Now you should have some free time to teach me that dive!!" Get a room! (credit:PA)
17. Her look for the 2011 Pride of Britain Awards(10 of18)
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From the honeyed tones of her hair and tanned, slender limbs to that dress... has Cheryl ever looked more drop dead gorgeous? (credit:Getty Images)
19. The head scarf years(11 of18)
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How to make a head scarf look even worse? Go for the poo brown option. In cheap fabric. (credit:Getty Images)
21. The thigh tattoo(12 of18)
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Put it away love. (credit:Getty Images)
24. When she colour co-ordinated her hair to her outfit(13 of18)
Looking every inch the Hollywood starlet. Meanwhile, the world asks, 'why?' (credit:Getty Images)
27. The naughty school girl look(15 of18)
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She wasted saved this one for Girls Aloud's gay audience at the Big Gay Out in 2005. (credit:Getty Images)
28. The tramp stamp on her back(16 of18)
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What. Were. You. Thinking? (credit:WENN)
29. Her mum(17 of18)
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Ok, so her mum can't really be classed as a 'moment' but Joan has been there through thick and thin, and for that we salute her. And errr, hello? She did play quite a major role in creating Chezza in the first place, you know. (credit:WENN)
30. And finally... the sex crab(18 of18)
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One part amazing, two parts ridiculous. (credit:YouTube)