Mandy Moore: Yet another "devout" celebrity Catholic. Just like Carson Daly, Martin Sheen, Morgan Fairchild, Martin Scorcese, Conan O'Brien, Alanis Morrissette, Mado -- er, er -- "Esther", Arnold Schwarzenegger, Michelle Branch, Nicole Kidman, Mark Wahlberg, Ashley Judd, etc. etc. etc.
gag.
Add Michael Moore to your list.