can someone please tell me when tickets will go on sale for mountain view, CA. for June 23rd 2013 concert? every other venue is on sale except this one? ticketmaster knows nothing about it? why? i dont want to miss it and will travel elsewhere if i have to.
Help!!!!!

I'm trying to find out how and when to get tickets to the June 23rd California concert at the Shoreline in Mountain View, California. Its not on the shoreline website or ticketmaster or live nation? When are they going on sale? Hope someone knows and also if there is a fan club to get tickets early before the general public?
Thanks