The rumours are true: The cast of Stereophonic made their late-night debut outside the constraints of the Golden Theatre, performing their barn-burning rock track, “Masquerade,†on The Tonight Show. (Translation: No $250 rear-mezzanine ticket purchase is required to click.) The song, a sort of medieval journey stomper, is performed by the Stereophonic characters every night as their band relentlessly workshops what it should sound like in the studio. This, however, is the completed version with a longer runtime. “I wanted ‘Masquerade’ to feel transcendent. Other pieces of music do that in the play, but ‘Masquerade’ is one of those where you feel why they’re doing what they’re doing,†musician Will Butler previously told us about the song. Yes, they’re all playing the instruments, singing, swaggering around in nice paisley shirts. No wonder they broke the record for Tony nominations.