It’s a little jarring to get announcements about a Memorial Day weekend festival at the same time it starts snowing in Seattle. But considering how quickly Sasquatch! sold out last year, this Type-A forward planning is kind of necessary.

So heads-up: Sasquatch! Music Festival—the muddy music free-for-all that takes over the Gorge every May—has added a fourth day and the Foo Fighters are slated to headline the new Friday night event. Even though there isn’t a single other band booked yet, discounted four-day passes ($285) are on sale now. They go up to $295 on February 12, which is also when single-day tickets ($80) are available.

I’ll be honest: I’m going to wait until the lineup is announced on February 7 before I drop hundreds of dollars. But if you know you want to go, or think this Foo Fighters announcement is only the beginning of a long list of ‘90s rockers planning to reinvent themselves at Sasquatch! (Guns N’ Roses! 311! Fuel! Goo Goo Dolls… Gin Blossoms… oh god), then go for it. It is Sasquatch! Music Fest’s 10th anniversary, so there may be some decent surprises in store. And last year’s lineup, heavy on the indie bands, local hip-hop acts and comedy, was satisfying.

Who would you want to see at the Gorge?

Sasquatch Music Festival runs May 27-30, 2011 at the Gorge in George, Wa. Tickets are available at sasquatchfestival.com.