The Music Meister is The Flash and Supergirl Musical Crossover Villain - IGN: "Update: Supergirl and The Flash executive producer Andrew Kreisberg also spoke about the musical crossover at TCA later in the day, remarking, “Hearing Melissa [Benoist] and Grant [Gustin] sing. ... I hear Melissa sing all the time, so for you guys to hear that finally will be so great. As much as we hope these shows speak to people, whether socially or Alex's storyline and what it means to people, at the end of the day we're trying to entertain people. ... To be able to do a musical episode is so exciting to us. If anything, it's what I would always love about what Joss Whedon would do [on Buffy] with “Hush” or “The Body.” He'd have these very special episodes, but they were intrinsic to the ongoing storytelling that was going on.”
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