Well, the band have been blazing a trail on the Internet for some time now but they've finally settled down and found a home on Slumberland Records. That's fitting for a variety of reasons, not least of which is how much this new Mercury Girls single sounds like early SLR bands Black Tambourine and Lilys.
Shimmering, expertly produced, and a sort of sonic narcotic, "Ariana" is just a blast of energy. There are bits here that sound like the expected C86 pioneers as well as other parts that recall the sort of things that thrived on 4AD records back in the label's heyday -- think Swallow's "Sugar Your Mind" or "For Love" by Lush.
Mercury Girls are, presumably and hopefully, working on a full-length record now. I simply can't wait to hear it and I urge you to get hip to the sounds of Mercury Girls before they get huge.