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When a band chooses to include a cover in their live set, it’s always interesting to hear what they chose, especially when said band is a side-group of three lead singers who also write most of the damn fine songs for their three separate bands. Sometimes, a cover choice is horrible, sometimes overly obvious. But sometimes the choice is so unique that you as a viewer become giddy and slack-jawed.

To anyone with a solid music sensibility, the latter is what happened last night at the 9:30 Club. Amongst the tracks from their self-titled debut, Middle Brother—composed of Delta Spirit‘s Matt Vasquez, DawesTaylor Goldsmith, and Deer Tick‘s John McCauley, Goldsmith commanded “Bring It On Home to Me” by Sam Cooke, and Vasquez changed “Racing in the Street” by Bruce Springsteen into a new punk classic. But it was McCauley’s stunning choice of the Replacements’ super-deep cut, “Portland,” that caused the jaws of many to hit the 9:30’s floor. McCauley took “unique cover song” to a whole new level.

See the rest of the photos from each of the sets here.