Katy Perry is worried about her hen party

20 June 2010 - Toronto, Ontario, Canada - Katy Perry. 21st Annual MuchMusic Video Awards held at MuchMusic HQ. Photo Credit: Brent Perniac/AdMedia

Katy Perry is getting worried about her hen party apparently.

The singer is said to be getting fellow pop star Rihanna to plan her last party as an unattached woman before marrying Russell Brand, and is a bit wary of what will happen.

She said, “I’ll probably end up sh*t-faced in an alley wearing a penis hat.”

Katy also revealed that she won’t be going on a diet like most brides before their wedding – she’ll eat just as much junk food as she normally does.

She said, “My favourite junk food is Taco Bell, but every once in a while I’m gonna eat a Double Double burger too.