On the March 7 airing of MBC's 'Radio Star', N revealed, "There was a group chat of the members without me. They said they've created the chat room to prepare for my surprise birthday party. They didn't get rid of it and I found out."

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He continued, "I was hurt a little but felt better knowing that they were trying to throw me a birthday party."

MC Kim Gu Ra�asked if the chat room without N still exists. N answered, "I deleted it all. I took my members' phones and pressed 'exit' on all of them."