The 'Shine Ya Light' singer, 23, attended the Capital FM Summertime Ball on Saturday (21 June) where Calvin was also performing.
So she did what any confident girl would do - showed off her killer body in an unmissable outfit. Love it, or hate it, Rita's ensemble was certainly eye-catching.
Dressed in head-to-toe Moschino, the fishnet leggings and crop top were teamed with a chunky gold belt and showed off her petite, toned frame - and her pert bum!
Although Rita dressed to kill, she couldn't quite raise a smile on the red carpet of the annual music event, though... Perhaps knowing that her former lover was close by.
Calvin dressed down in a grey T-shirt and black jeans, and also looked a bit grumpy!
After opening the event, he took to Twitter to say: "Caught me looking moody but had a great time today at Capital Summertime Ball."
It's the first time the pair have been at the same event since Calvin confirmed they had split earlier this month.
At the time, the Scottish DJ ended weeks of rumours about their relationship by tweeting: "To address speculation - myself and Rita ended our relationship some time ago. She is a beautiful, talented woman & I wish her all the best."
Rita then tweeted her own statement about the split, saying: "I don't usually address speculation but I've had an incredible time with Calvin & I will treasure the memories. I've moved on from this topic so I hope people will respect that and do the same."
However, friends of chart-topping singer Rita say the star regrets the split and wants Calvin back...
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Copyright: WENN ApegaSee the video to Rita Ora's single 'I Will Never Let You Down':
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