There was a television in the dressing room, and the showcase of the two idols was broadcasted on the television.
It could be said that the showcase didn't aim for any profit. Willem had said that only a small number of fans could attend the showcase, and instead of needing to buy the tickets, the company was giving away free tickets.
And the fans didn't need to do anything to get the tickets because it was the company that chose the lucky fans to get the ticket.
Michy and CM both had a website for their fans, but their fans needed to apply for a membership to be able to access the site. And the company deliberately chose the fans who held the membership card for the longest to attend the showcase.
With that method, the company hoped that only loyal fans could attend the showcase, and no haters would be able to cause trouble.