It appears that Sunmi's "24 Hours" is still all the rage despite promotions ending a few months ago. �While Psy recently�did a parody performance�of "24 Hours" during his Seoul Concert, Sooyoung most recently did her own performance of the song during Girls' Generation's concert 'Marchen Fantasy' on December 22.�

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Sooyoung donned a black-and-white striped one-piece, showing off her long, slender legs while doing her chic and sexy performance. �Which cover is your favorite so far?