SS501's subunit, SS301, recently released their music video 'AH-HA' in celebration of their group's11th Anniversary!

SS501 was formed under DSP Media and they debuted on June 8th, 2005 with five members: Kim Hyun Joong, Heo Young Saeng, Kim Kyu Jong, Park Jung Min, and Kim Hyung Jun, along with their debut mini-album 'Warning.'

Members Kim Hyun Joong and Park Jung Min are currently enlisted in the military, therefore members Heo Young Saeng, Kim Kyu Jong, and Kim Hyung Jun have been promoting as SS301.

'AH-HA' will be included in their new special album 'Estreno' which is to be released on June 10th, 2016 at midnight.

SS301 promised fans that if 'AH-HA' reaches 1 million views, they'll release a behind-the-scenes video of the making of the music video!

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