How could I contact Yoko Ono?

I have had great success in contacting Yoko Ono.

I have had replies on You Tube, Twitter, and by snail mail- or regular mail

send the letter to

Yoko Ono

Fan Mail Address:

Yoko Ono

C/O Studio One

1 West 72nd Street

New York, NY 10023

She has sent me an autographed postcard that has a piece of the sky on it (a blue square) and it states "lets meet again in 10 years and put the sky back together again Love Yoko"