Fantagio Music labelmates Seo Kang Jun and ASTRO's Cha Eun Woo will be stepping up to support Hello Venus by appearing in the girl group's comeback MV!

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Hello Venus will be returning this January 11 with their 6th mini album 'Mystery of Venus', as well as their title track "Mysterious". Still cuts revealed of Seo Kang Jun and Cha Eun Woo show a very pink-toned MV, with Seo Kang Jun reading a newspaper about Hello Venus and Cha Eun Woo dressed in a very pink train attendant outfit. 

5urprise, ASTRO, and Hello Venus have been close co-workers since their trainee days. Good to see them supporting one another!