Rod Stewart has a strange way of keeping his aging body fit, baths of ice.  The 66 year old singer tells USA Today that "I keep fit, and after anything I do, like cycling, swimming, football, I hop in a bath of ice water up to about my privates. Works wonders, it does."  I have a hard time reading any quote where Rod mentions his "privates", but if that's your thing check out the video of Rod after the jump.Along with his ice baths, Rod talks about his model railroading hobby and who his favorite singer is in the following video from USA Today.