Of the ones you listed, the only celeb I know of that we have any info on is Jennifer Lopez. She was once asked "The Question" (Are you ticklish, and where, of course) and her response was that she was very ticklish in all the regular spots, like her waist, but she didnt mention her feet, at least not according to the info we have available. Of the other ones you listed, there is no info on them to my knowledge, but maybe you can check with other TMF'ers or other sources for whatever celeb you want to know about. That is my best advice.
Mitch