My children have always shown an intense interest in some of the arts. Coop had his Vivaldi phase, and his air violin phase, and then there was the Ed Emberly phase (actually we're still in that one). Mason has had the humming John Williams symphonies phase (also, still in that one), and now has entered the black phase.
Please note Cooper's version looks like a LEGO, down to the yellow face. And Mason's is, well, black.