Thunder appeared as a guest on SBS powerFM's 'Kim Chang Ryul's Old School' on December 15!
On this day, he was asked if he dreamed of becoming a singer because of his sister Dara, who debuted under 2NE1 years before he joined MBLAQ. Thunder said, "My dream of becoming a singer had nothing to do with my sister. Although I'm sure there was some influence. I dreamed of becoming a singer when I watched Rain."
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Kim Chang Ryul asked, "That's how you got into MBLAQ right?" and Thunder replied, "It unexpectedly worked out, so I was able to enjoy a happy time in my life." Regarding Rain, Thunder said, "Because of his hard work, he's the final boss king."