I had the convince that the Arashi x Perfume version of "chocolate disco" was a big Hit for me... and when I think nothing would problably beat that I found this video on youtube ...
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this video was hilarious and a totally WIN for me.... Arashi carry of the entire choreography and did it really cool aswell as the ending BUT here SMAP had me laughing the entire video.... 5 points for making me stupidly happy! .... :P sorry my beloved Arashi but SMAP won this!