Spears is scheduled to appear on The X Factor this weekend
US singer Britney Spears is to play two concerts at the O2 arena in London next June - the only European shows on her forthcoming world tour.
Tickets for the dates on 3 and 4 June will go on general sale on 5 December - although fans who register with her website can buy them 24 hours earlier.
"It's going to be very special," said Rob Hallett of tour promoter AEG.
The concert, he said, would take its theme from her latest album The Circus, which is released next week.
"We're creating a musical circus," he said. "Expect to see jugglers, dancers, tattooed ladies and acrobats."
According to the promoter, the concerts will be Spears' only dates in Europe "for the foreseeable future".
Spears last performed in the UK in 2004 when her Onyx Hotel tour visited Birmingham, Glasgow, Belfast, Manchester and Wembley Arena in London.
The 26-year-old will be in the capital this weekend to appear on ITV1 talent show The X Factor.
Before that she will travel to Germany to attend the annual Bambi entertainment awards in Offenburg.
The singer will be named best international pop star after achieving what organisers have called a "stunning comeback from an absolute low point".
"Britney Spears is back," said host Hubert Burda. "Radiant and better than ever, the erstwhile idol has reclaimed her throne."
Lynne Spears has written a book about her family called Through the Storm
In an interview with Rolling Stone magazine, the performer admitted she felt "like an old person" now her much-documented troubles are behind her.
"I go to bed at, like, 9.30 every night and I don't go out or anything," she is quoted as saying. "I just feel like an old fart."
Spears' mother Lynne, meanwhile, has been telling the BBC how happy she is that her daughter has got her life back on track.
"Britney wants to do it right," she told Radio 5 Live's Colin Paterson, attributing her recent turnaround to having "good people around her" and "lots and lots of prayer".