Katy Perry - Katy 'Rocky' Perry

Katy Perry "looks like Rocky" when she is working out.

The 'Waking Up In Vegas' singer takes inspiration from the fictional boxer - played by Sylvester Stallone in the hit film franchise - and skips at home to help her stay trim.

She said: "Jumping rope and swimming will get you in top shape like that. Swimming will get you into shape without hurting anything on your body, but I just don't like to be out in the sun necessarily, so I defer to jump rope. I kind of look like Rocky."

Although the 24-year-old star enjoys exercising, she always makes time to relax and is a big advocate of meditation.

Katy has previously revealed she took boxing lessons when she was younger, but insists it would take a lot to provoke her into using her pugilistic skills outside the ring.

She said: "I'm not a violent person, though I did take boxing lessons from the age of 17. My coach was a Jamaican street fighter, and he once lost an eye in a fight. But I would never fight anyone, unless they wanted to hurt my family."