Friends since childhood, Marcus Pepperell (vocals, guitar and keys) and John Hamson Jr. (drums, vocals and bass) each played in various London bands before teaming up for the synth-pop duo Thumpers three years ago. The project initially began through e-mail correspondence, but once they began writing and recording together in 2012, their catchy, exuberant recordings instantly caught on via the Internet. And then thanks to just a few tunes, Thumpers (above, performing “Together Now” for KEXP FM) signed with Sub Pop. Their debut full-length, the polished Galore (stream it below), arrived in North America this past winter, and AllMusic was impressed: “Thumpers manage to tuck a wide scope of ideas and sounds into their songs without ever feeling too overbearing or crowded…. Constructed with flawlessness in mind, Galore succeeds in its ability to sound intensely produced and polished but never sterile. The same strong heartbeat that makes acts like Dirty Projectors, Phoenix, Suckers and the like equally human and precise beats inside Thumpers’ best songs as well.” See them play the late show tonight at Mercury Lounge.