Pop singers commissioning and accepting songs penned by other artists is one of the music business's time-honored traditions. In one recent example, producer Blood Diamonds (aka Michael Tucker) and electro-pop darling Grimes assembled a track for Rihanna to use. Though their creation was ultimately rejected (Grimes would pick the song back up for her own use), it isn't surprising that Blood Diamonds would take a stab at such an effort. The Kansas City-bred, Los Angeles-based Tucker happened into making music while at school for video game design. His sonic output today, which includes both originals and remixes for the likes of Chvrches, Sky Ferreira, and Ryan Hemsworth, has a vivid, visual quality to it. Blood Diamonds' electronic pop leans toward the sugary, explosive, and beachy. In a 2011 interview, he described his music in juice form, likening it to "Tropicana orange juice and a little bit of off-brand pineapple juice" -- a portrayal that was, at once, imaginative, appealing, and totally on-the-mark. Blood Diamonds performs Sunday, June 21, at Brick and Mortar Music Hall. 8:30 p.m., $15-$20.