Verified answer

if u search "michael phelps facebook" on google it'll give u this

http://www.new.facebook.com/people/Michael_Phelps/...

i wouldnt bother adding him though, didn't he already say he can't accept anymore friends during that interiew??

I wouldn't know, but seriously, he might not even own a facebook. Many people pose as celebrities online and sometimes the celeb has no clue about the site. Try getting proof first.

he had an interview and he said he got on facebook and had so many friend request so he has one. btw he said he couldn't have any more because it was overwhelming