BATS most popular musical! The audience is an elite group of wealthy investors about to select Broadway's next big musical! First, they’ll meet the fictionally-famous cast of Broadway actors who "audition" a number of new musicals by improvising songs directly from song titles supplied by the audience.
Then, the audience will vote with their (fictional) pocketbook - writing a "check" and investing in the show they most want to see. The show with the most investors is then turned into a complete musical in the second half, including a reprise of the winning song! And of course, everything is completely improvised!