Katy Perry claims that her ample bust is due to prayers to God as a child for big boobs.

The singer said that from the age of nine she longed for a large chest, but now admits that she has to go through a skipping ritual before venturing out in public, in fear of her breasts escaping from her clothes.

"I remember really vividly kneeling by my bed as a nine-year-old, saying my prayers and asking God to give me boobs that were so big that if I laid on my back I wouldn't be able to see my feet. Eventually that request was granted," Perry told The Sun.

"A bit of divine intervention displays the power of prayer. Every time before I go on stage, or go out where I know there will be a lot of Press, I take a skipping rope and spend about ten minutes, fully clothed, skipping."

"I look like Rocky. This way I can ensure that everything is firmly in place and I won't have a wardrobe malfunction. Don't want those boulders doing a show of their own."