!['Supergirl' 'Flash' Musical Boss on Writers, Original Songs](http://townsquare.media/site/442/files/2016/09/supergirl-flash-musical-pic.jpg?w=980&q=75)
'Supergirl' 'Flash' Musical Boss on Writers, Original Songs
It didn’t take long after the announcement of a musical Supergirl-Flash crossover for rumor mills to jump the gun with reports of Joss Whedon and Neil Patrick Harris, when in reality producers have only just begun assembling the four-way crossover. Now, DC boss Greg Berlanti updates on the musical, including a writer “we’re really excited about.”