Katy Perry has rocks in her knees

Last Updated: Jul 29, 2013, 19:17 PM IST

Los Angeles: Singer Katy Perry says she has two small rocks stuck in her knees, courtesy lots of surfing expeditions during her childhood.

The 28-year-old, who is dating singer John Mayer, likes the feeling of rocks in her knees, reports contactmusic.com.

"Growing up in Santa Barbara, I did a lot of surfing and skating and wherever I go I still have these two rocks that I still can`t get out of my knees from being slashed across the rocks in Rincon, which is like a really popular spot in Santa Barbara, and the rip tides just slapped me against the rocks and forever I`ve had these rocks in my knees," Perry said.

"I kind of like it, I feel, like, closer to earth," she added.