MBC's Chuseok special, 'Idol Star Athletics Championships', is back for the third time, and they've just revealed the line-up of its participating idols. The first recording will be held on August 27th at the Jamsil main stadium. Idols in attendance include Super Junior, SHINee, SISTAR, miss A, Davichi, ZE:A, T-ara, MBLAQ, G.NA, INFINITE, Hwanhee, and more, making up a total of a 140-150 member cast. 2AM's Jo Kwon, whose athleticism earned him the nickname 'Kkap Bolt', is unfortunately unable to attend due to an overseas schedule.�Boom, who recently was discharged from the army, will be joining the show as an MC alongside other MBC anchormen and track & field MCs. Competitions include the 50m race, co-ed high jump, co-ed 50m hurdle, co-ed 400m relay, and others.� The special will air on September 13th, one day after the Chuseok holiday. Source + Photos; Newsen via Nate