Christina is said to be suing Perry, Live Nation and a number of stage production companies.
The Roar hitmaker closed her epic 151-show Prismatic World Tour in Costa Rica in October 2015, during which she performed hits from her fourth studio album Prism.
During the run of gigs she visited parts of Europe, Asia, Australia, and North and South America.
Shortly before the final show, she took to Twitter to say:
Perry's tour was also controversial as she was said to have approached three of Taylor Swift's Red World Tour backing dancers to perform on her Prismatic World Tour, thus starting a long-running feud between the pair.
The latest act of which has seen Swift poke fun at Perry in her latest music video for new single Look At What You Made Me Do by dressing up like the pop star.
- Bang! Showbiz