SISTAR and MC Boom performed a special performance for MBC New year special the Idol Athletics Championships.

For the special performance, SISTAR showed off their sexy charms as usual however Boom showed his own sexy charisma. Wearing a black semi see-through outfit complete with a blonde wig, Boom channeled his inner Lady Gaga for the performance.

Aside from their sexy and hilarious special stage a lot are to be awaited for the New year special as well. Over 150 idol's joined various competitions and putting charisma, stage presence and stage outfits aside, the idol's showed off their physical fitness on various games and activities.

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