Green River, which was the Seattle band that featured future Pearl Jam members Stone Gossard and Jess Ament and Mudhoney members Mark Arm, Steve Turner and Alex Vincent, are prepping for their first show in around 21 years.

The band will reunite for Sub Pop’s 20th Anniversary gig in Seattle this Sunday, July 13, and it looks like they’re going to play some rarities. Jeff Ament told Billboard that that band has relearned two unreleased demos, “Baby, Help Me Forget” and “Leech”, which Ament called “some of the best songs” that the band has.

The band had already rehearsed twice in April, but have met up three times since and Ament now says that they feel like their “95% there”. He also stated: “We had a go at 16 or 17 songs and we have 14 right now, but we may need to get that down to 11 or 12 for Sunday. We have a 40-minute slot”.

Here’s what else Ament had to say about the possibility of Green River reuniting in the future: “It would be fun to write a couple of new songs with those guys”. Ament even admitted that the band has gotten offers to tour again, but he is waiting for the “ultimate pairing”, which be a tour with the one and only Stooges.

How awesome would a Green River tour be?

Oh well, I’m not holding my breathe, but if you’re attending the Sup Pop festivities this weekend have a blast. It should be a good time.

Have a listen to “One More Stitch”