I believe this to still be an accurate one to try:

Kelly Clarkson
c/o Narvel Blackstock
Starstruck Entertainment
40 Music Square West
Nashville, TN 37203

Could try:

Creative Artists Agency
2000 Ave Of The Stars
Los Angeles, CA 9006

I believe she only send pp ones these days. But here is via her manager if you'd like to try it.

Sharon Stone
c/o Chuck Binder
Binder & Associates
1465 Lindacrest Drive
Beverly Hills, CA 90210

This is also current, as far as I know. May be worth a try.

Jana Kramer
c/o David Guillod
Primary Wave Entertainment
10585 Santa Monica Blvd
Suite 135
Los Angeles, CA 90025

Man, I really enjoy this guy's film and television work. Got psyched when I saw 'Firestarter' and 'An Officer and a Gentleman' were playing again recently. Used the address mentioned in this forum where others have had success. A private residence in TN. Message me if you have questions, as I do not...

Love this forum and the feedback. Thank you for providing an accurate address. Used the one this forum suggested in UT. Mailed 8/1/16. Sent LOR, 5x7 and SASE. Received back signed on 9/9/16. From what I've read on here, he seems to be genuine with his fans and responds to most requests.

Yes, as far as I know.

Probably too soon to know for sure. However, this is the address of her Manager if you'd like to try there too. I don't know if she signs or not.

Ashley Tisdale
c/o Bill Perlman
Perlman Management Group
PO Box 2939
Beverly Hills, CA 90213

Hello. Looking for some assistance regarding best contact for Michael Biehn. This is probably the most RTS I've received for one person. Failed addresses over the last three months were: -c/o Judy Hofflund, Hofflund/Polone Management, 9465 Wilshire Blvd #420, Beverly Hills, CA 90212 -11220 Valley Sp...

I believe this to be current. Even if you can obtain a pre-print, go for it.

Julia Roberts
c/o Marcy Engleman
Engelman & Company
20 W 22nd St
Suite 805
New York, NY 10010-5890

Good luck.