For your central Jersey real estate needs: JudyNJHomes.com
It wasn't Carrie's fault, a real estate agent already had CarrieUnderwood.com. If you look at who bought KatharineMcPhee.com, it is a London company, possibly 19. It was registered on December 9, so it was definitely someone at the auditions.
http://www.whois.net/whois.cgi2?d=KatharineMcPhee.com