Drum & bass duo, Sigma, who seem to be going from strength to strength lately, are about to drop their new single, "Higher", which features a typically lovely vocal turn from Labrinth. Ahead of the single's release next month, the duo have just shared this pounding, bass-heavy remix from Grant NelsonThe track's a little more relaxed than previous efforts, relying on Labrinth's silky smooth vocals to set the tone. Grant Nelson, however, takes the track in the polar opposite direction, leaving little but the vocals and adding quite possibly the most thunderous bass line since Dead Prez's "Hip-Hop". Listen to the remix of "Higher" below; the official single is out on March 22 via 3 Beat.