I am in the process of interviewing a guy for a technical role that has the same name as the frontman for a very famous rock band. I am 99% certain I was not in contact with him... although googling this guy's name would come up with articles about "his" drug addictions...

Google is a wonderful tool but I would prefer to not search for the person online, as I am more concerned that false positives might unfairly bias my opinions on the applicant.