had to cancel a festival gig this wee k after being rushed to hospital with a mystery illness. The pop sensation made an announcement on Instagram that she was told to rest after spending a night in a Hungarian hospital. The 33-year-old singer-songwriter didn't share specifics about her health, only revealing she was urged to "rest thoroughly".

As a result, she missed out on Campus Fesztival in Hungary, where fans were expecting her performance. Rita broke the news just hours before her Debrecen set for the ongoing event. On her Instagram Story over the weekend, she said: "Please forgive this unexpected turn of events but sadly I will not be able to perform at Campus Fesztival tonight.

Having spent the night in hospital in Budapest, I must rest thoroughly and follow doctor's orders." The star ended her message by apologising to her fans who expected her concert, expressing appreciation for their "understanding". She stated: "I am so sorry to my fans who are going to be there today and I'm truly thankful for your understanding.

" The festival organisers have addressed the situation, sharing Rita's statement and writing: "[Her] crew has been working since dawn to set up the show ...

we are devastated by the news too. Saturday's program of the main stage will be reorganised soon. We wish Rita a speedy recovery.

" The cancellation of Rita's Saturday night performance was confirmed on the festival's website, with a similar statement to that shared on social media: "[Rita] arrived in.