Shonen Knife didn't make much of an impression overseas until the release of a 1989 tribute album that included versions of their songs by the likes of Sonic Youth and Red Kross. Coincidentally, the whole Seattle rock scene went global shortly thereafter, pulling into the spotlight bands that happened to be on the scene but didn't necessarily fit the flannel stereotype.
The Posies emerged as its representative power pop quartet, and as such are closer in musical sensibility to Shonen Knife, which is why it seems appropriate that they are playing at their 25th anniversary party next month.
Most of the Seattle groups looked to early punk and metal, but The Posies reached further back to the British Invasion (The Hollies, in particular), the first folk-rock era (The Byrds) and Big Star, the legendary Memphis band who invented power pop in 1972.