AceShowbiz -

Katy Perry says in an interview with PopEater she once staged a fake wedding with her ex-boyfriend in Las Vegas. She admits further that she and her man managed to send a shock to their family members, which then inspired her to pen her new single "Waking Up in Vegas" which is included in her 2008 album "One of the Boys".

Recalling the experience, Katy describes, "We went to Vegas on a whim and we decided to get fake married. We took all the pictures with the minister, with the fake cake, in the fake chapel and got a fake marriage certificate." She continues, "We went and bought a wedding dress and a suit at a thrift store, and scanned the pictures and the certificate to my family members, my manager at the time [and] totally freaked the s--- out of them."

"It was the most hilarious, stupid prank I've ever pulled," Katy goes on stating, adding that for the time being she still keeps "the wedding dress and the certificate."

Relating the fake wedding to her song "Waking Up in Vegas", Katy explains to PopEater, the track "is basically a song about getting into trouble with your best friend or your boyfriend or your girlfriend -- or whoever you're with -- and not having any 'I'm sorry for what I did'".

It was just last week that Katy Perry released the music video for "Waking Up in Vegas". The footage features actor Joel David Moore who plays as her boyfriend. Both of them are seen in the video winning almost all games in one of the Las Vegas' clubs after previously captured as two "hungover and broke" persons.