The Governors Ball Music Festival is taking place on June 23 and 24 at Randall's Island in New York, NY. This is the same weekend that Modest Mouse is confirmed to be performing at Metallica's Orion Music + More festival in nearby Atlantic City.
The Governors Ball will be announcing its full lineup on February 21. Until then, they have started dropping hints on their Facebook page. Including one today of a cartoon mouse being modest, making it look very likely that Modest Mouse will be performing at that festival as well.
Tickets have yet to go on sale, and remember that if they do before the 21st, this is not confirmed. Keep an eye on The Governors Ball Music Festival's website for more info.
If this turns out to be true, it definitely looks like Modest Mouse will only be performing on one day at the Orion Music + More festival. So be careful when buying tickets there, if you weren't planning on going for the whole weekend.
Thanks go to Miike S for bringing this to our attention.