The 'Firework' singer, who is married to Essex-born comedian Russell Brand, described the ITV2 programme as "genius" during a performance at the Hammersmith Apollo last night.
The Sun quotes her as saying: "I love The Only Way Is Essex, even though I don't understand what they are saying. It is genius."
Perry also told the crowd: "I watch My Big Fat Gypsy Wedding. I want those dresses. I watch a lot of English TV."
Perry reportedly held talks with ITV2 last year about fronting "various shows" for the channel.
The 'Californa Gurls' hitmaker is currently touring the UK and Ireland and will complete the last of three shows in Hammersmith tonight. She will perform for the last time at Wembley Arena on April 9, but will return for an arena tour in October and November.