Wild Flag, the supergroup of Sleater-Kinney/Portlandia's Carrie Brownstein, Helium's Mary Timony, S-K/Quasi's Janet Weiss, and the Minders' Rebecca Cole, are releasing their debut 7" on Record Store Day. It was produced by Britt Daniel. You can listen to the expansive, Helium-esque B-Side now at NPR. If you liked that, make sure to catch them live, starting this weekend. The dates: ...