Hello, Customer, and welcome back to JustAnswer!
Most celebrities' genuine, personal mail (street mail) addresses, email addresses and cell phone numbers are not available to the public, because they want to preserve their privacy, as you can well imagine. I'm so sorry you paid a Private Investigator to find out this information for you, which turned out to be inaccurate.
Unfortunately, you will most likely never be able to find out Eminem's real addresses, but, you do have the opportunity to contact him through his representatives like his management agency, agent or publicist. Will he personally receive and read your letter? There's no sure way to tell, but sometimes, if you are 'creative' and mark the envelope with colorful writing and say something like 'Personal--Please give to Eminem to read', etc., it might find it's way into his hands.
Most Celebrity fan sites and other internet searches for Celebrity email addresses, like this one, http://famous-relationships.topsynergy.com/Eminem/Contact.asp
state the following:"We do not list an email address for Eminem because most email addresses circulating the Internet are fake and those that are genuine (very few) become so popular that the owners change them soon after they are posted somewhere. Email addresses are impossible to verify (anyone can sign up for a free email address.) Most celebrities prefer and will reply only to traditional mail."
This is the most recent contact information for Eminem:
9465 Wilshire Blvd #480
Beverly Hills, CA 90212
William Morris Agency
1325 Avenue of the Americas
New York, NY 10019
1366 Rose Avenue
Venice, CA 90291
2220 Colorado Avenue
Santa Monica, CA 90404
151 Lafayette Street
New York, NY 10013
His Fan mail address is the same as his recording company, above; see more information here:http://www.eminem.net/fanmail/
As they state, don't get your hopes up, of getting a personal response back, but, you can never tell. If you request an autographed, photo, you might get this, but it will be sent out by his publicist's office or an assistant. If you do want to get back an autographed photo, your chances are best, by including a self addressed, stamped envelope (use U.S. postage) large enough for an 8X10 photo, so all they have to do is put the photo in the envelope and mail it back to you (if they do send photos at all--most celebrities' representatives will send photos, if requested).
I wish you the best of luck!
I hope you have found this answer helpful; if so, please click 'Accept' and leave positive feedback. If you need additional information, please click 'Reply'. Thanks for the opportunity to be of help.
Edited by Cher on 8/7/2010 at 7:19 PM EST