Ongaku Gatas concert tour?

Okay, first I don't know where this information came from, but someone @2ch posted schedule for OnGatas spring concert tour.
Dunno if I should trust this or not.....
Of course I want to believe it....

Anyway, the days that were posted are:
10/03/06 Osaka Namba Hatch 17:00/18:00
10/03/22 Aichi Zepp Nagoya 14:00/15:00
10/03/22 Aichi Zepp Nagoya 17:30/18:30
10/03/27 Tokyo Zepp Tokyo 14:00/15:00　　
10/03/27 Tokyo Zepp Tokyo 17:30/18:30

Let's wait and see if this is true.