Mercury Girls' new 7”, “Ariana,” will be released via Slumberland Records on May 20; however, both of its songs, the title-track and “All That Heaven Allows,” are currently streaming over at Brooklyn Vegan. The former is vibrant and youthfully airy, while the latter packs a more hard-driving energy, as backend provides the push giving the determined steady streaming vocals power. Mercury Girls play Underground Arts on Sunday, May 15 with King Gizzard & The Lizard Wizard and The Murlocs.