Guckkasten lead vocalist Ha Hyun-woo appeared as the featured original singer on the 7th episode of JTBC's 'Hidden Singer 8', which aired on the 12th. Despite expressing immense confidence prior to the broadcast, claiming his unique vocal tone could not be imitated, Ha faced intense competition from skilled contestants. Nevertheless, he successfully overcame early rounds to prove his status as a top-tier rock vocalist and ultimately secured the final victory, once again demonstrating his explosive range and signature shouting style. - Ha Hyun-woo demonstrated his vocal prowess by winning the final round of 'Hidden Singer 8' episode 7. - The broadcast featured vocal evaluations from experts, including Lee Yoon-seok and Park Wan-kyu, who showcased high confidence in identifying his unique voice. | Guckkasten lead vocalist Ha Hyun-woo appeared as the featured original singer on the 7th episode of JTBC's 'Hidden Singer 8', which aired on the 12th. Despite expressing immense confidence prior to the broadcast, claiming his unique vocal tone could not be imitated, Ha faced intense competition from skilled contestants. Nevertheless, he successfully overcame early rounds to prove his status as a top-tier rock vocalist and ultimately secured the final victory, once again demonstrating his explosive range and signature shouting style. - Ha Hyun-woo demonstrated his vocal prowess by winning the final round of 'Hidden Singer 8' episode 7. - The broadcast featured vocal evaluations from experts, including Lee Yoon-seok and Park Wan-kyu, who showcased high confidence in identifying his unique voice.