Sometimes busy is the only way to be. And busy is what J. Mars seems to be. Prior to releasing a video for "Black Diamond Shamballahs," which we premiered this past weekend, Mars took to Jhene Aiko's snare-happy R&B track "Stranger," laying down a few bars in response to Aiko's wistful vocals. It adds another level of depth to a song that shouldn't but could easily be overlooked. Download the J. Mars version below.