It was revealed that she split from her footballer beau Angus MacDonald six weeks ago, with the star deleting snaps of the couple from her Instagram.
And Alexandra Burke appeared to be moving on from the breakup as she worked on her sensational physique during a workout session on Friday.
The West End star, 32, looked incredible as she showcased her taut midriff in a busty sports bra and skin-tight gym leggings.
Toned: Alexandra Burke looked sensational as she worked out in a sports bra and skin-tight gym leggings on Friday
Alexandra highlighted her tiny waist and ample assets in the crop top and ensured to work all her angles as she posed in the mirror.
The beauty wore her long locks down as she did the cardio and abs workout, letting her wavy tresses cascade over one shoulder.
Although keeping her makeup to a minimum, Alexandra added a little sparkle to her gym ensemble by donning a silver ring on her left hand.
It comes after MailOnline exclusively revealed that the singer had split from her footballer boyfriend Angus MacDonald after 15 months of dating.
It’s all over: The West End star, 32, split from footballer Angus MacDonald after 15-months of dating back in October (pictured in October 2019)
The West End star has deleted all trace of the Hull City defender, 28, from Instagram, including pictures of the pair enjoying birthdays and holidays together.
An insider confirmed to MailOnline that Alexandra and Angus had ‘amicably split’ and ‘remain good friends’ despite having gone their separate ways.
A source added: ‘Alexandra and Angus both have busy careers and it’s been hard to see each other during lockdown.
‘It felt like the best decision for them to cut ties and for Alexandra that involved removing any pictures of them together from her Instagram.’
Staying fit: Alexandra flashed her taut midriff and made sure to work all her angles as she posed up a storm during her pre-weekend workout
Alexandra went official with Angus in July 2019 in a now-deleted black and white post that was taken during a romantic meal.
The X Factor winner dated the sportsman following the breakdown of her engagement to Josh Ginnelly, who she split from just weeks earlier.
Alexandra supported Angus throughout his bowel cancer diagnosis; after he was confirmed to have the disease in August 2019.
After undergoing surgery to remove his entire bowel, and have his stoma reversed, Angus was given the all clear last Christmas and returned to football training in January.
In an interview from April this year, Angus credited Alexandra for helping him to cope after he had just discovered the news.
He said: ‘The first person I told was one of my best friends. It was a very emotional phone call – I don’t think I’ve ever cried to my friends before. I couldn’t get my words out.
‘I had the weekend with Alex and she knew something wasn’t right. On the Saturday night, I broke down and told her the news.
‘I would rather have just dealt with it alone and I didn’t want to upset anyone but she was reassuring. I don’t know what I would have done without her support.’
During their 15-months together, Alexandra and Angus holidayed in Dubai, Japan and Disneyland, with all photos from their previous trips now wiped from social media.
Removed: Since splitting from Angus, Alexandra has deleted all trace of her former partner from Instagram, including pictures of the pair enjoying birthdays and holidays together
In one post, Alexandra cuddled up to Angus wearing Minnie Mouse ears, while calling her boyfriend ‘dreamy.’
Alexandra, who is confirmed to take part in the upcoming series of SAS: Who Dares Wins, was in a relationship with ex-fiancé Josh for three years before they split.
The former Strictly star confirmed she and Josh were engaged in 2018 when she shared a photo of her diamond ring to Instagram alongside the words: ‘I said yes!’
Alexandra won The X Factor in 2008 after performing with Beyoncé in the final, and went on to achieve three UK No 1 singles.
Having also found success in musical theatre, she appeared on Strictly Come Dancing in 2017 and came second.
‘It felt like the best decision’: An insider confirmed to MailOnline that Alexandra and Angus have ‘amicably split’ and ‘remain good friends’ despite having gone their separate ways