Actor Rocky (ROCKY) from the musical 'Dream High Season 3: Reboot' has stepped down from the production, and Block B's U-Kwon will take over the role of Jason for the first round of performances.

Art One Company announced through its official social media that Rocky would no longer be able to perform due to changes in the theater schedule. Accordingly, Block B's U-Kwon will take on the role of Jason during the first round of performances, and additional casting for the Jason role will be announced through a separate notice.

The production company issued a formal apology for the inconvenience caused to audiences due to the casting change ahead of the show's opening. Ticket cancellations and refunds can be made without fees until 5:00 PM on the 31st, and detailed information can be found at each ticketing platform's customer service center.

Meanwhile, 'Dream High Season 3,' which revolves around the growth and challenges of youth, stars Seven, Kang Seung-sik, Im Se-jun, and Block B's U-Kwon. Following the first round of ticket sales on the 16th, it ranked first in Yes24 reservation rates and third in Ticketlink, garnering an enthusiastic response. The performance will run from August 8 to October 18 at the BBCH Hall of Gwanglim Art Center in Seoul.