Katy Perry says the key to attracting men is "sucking your belly in".

The 'I Kissed A Girl' singer has offered women advice on how to look their best at all times, and claims good posture is very important when trying to impress members of the opposite sex.

Everyone should do that whether you're on a red carpet or not

She said: "I'm really critical of my posture, it makes a big difference. And I try to suck my belly in. Everyone should do that whether you're on a red carpet or not. Even if you're just going out to dinner with your boyfriend you should try and suck it in."

Katy is on the look-out for a new love after splitting from her boyfriend-of-two-years, Gym Class Heroes star Travis McCoy.

It has been claimed the pair decided to go their separate ways after months of bitter arguments.

A source said: "It's sad, but they were fighting a lot in recent months because they never saw each other.

"When somebody becomes very famous very quickly their relationship usually suffers. She's going through such a huge time at the moment so needs to be on her own."