Katy Perry obsessed with her cat

Katy Perry is obsessed with her cat.

The 'Waking Up in Vegas' singer - who recently reconciled with her boyfriend, Gym Class Heroes rocker Travis McCoy after a four-month split - prefers her cat Kitty Purry to men because their relationship will never make the cover of gossip magazines.

The 24-year-old star said: "I'm a bit obsessed with my cat. She's my substitute boyfriend. It's pretty funny that I can't go for dinner with someone and not be sleeping with them. That's one of the unfair things. I have iChat dates, those are fun."

Katy also revealed her shock at the success of her debut single 'I Kissed A Girl', which was number 1 in over 16 countries.

She told Britain's Glamour magazine: "I thought it would have some attraction in the States and that people would get the joke, but I didn't expect to go to random places in Germany, Scandinavia or Japan and people would know every single lyric."