I take it you have to sign up to facebook to be able to view more than just his picture - so I'll take your word for it
You have to send a request to him to be his "friend" and hope he accepts, so you can see the rest of his pictures and his profile.
some people love adding people they don't know Just because they're famous. It's the 21st century version of teenage girls throwing their knickers on stage at tom jones.