Katy Perry has announced a new UK tour for 2014.
The US star's Prismatic World Tour will finish with three nights at London's O2 Arena.
Perry scored her second number one album in the UK with Prism.
It follows the success of her chart-topping single Roar which was recently certified platinum in the UK, selling more than 300,000 copies. It also spent the most weeks as the number one airplay record this year.
Roar has already sold more than five million singles worldwide.
Prism has been certified gold (100,000 sales) in the UK and globally the album went to number one on iTunes charts in 90 countries around the world.
The UK will be the first country on what is expected to be a year-long world tour.
Icona Pop have been announced as the support act.
The Swedish synth-pop duo produced one of the biggest hits of 2013 with their song I Love It, which charted at number one on the UK singles chart.
The tour will include a special standing pit in front of the stage called The Reflection Section.
Tickets go on sale at 9am on Friday 22 November.
Katy Perry's new single Unconditionally will be released in the UK on 16 December.
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