Derpy Siwon strikes again as he auditions to be 'Infinity Challenge's sixth member

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Siwon showed just how much he wanted to become the sixth member of 'Infinity Challenge' as he offered to cancel his flight to Los Angeles to make himself available. At this, HaHa pointed out, "You won't be able to go on tours if you join us for long-term, is that okay?"�

Siwon replied, "The fans will understand. When I consider the priorities, I think 'Infinity Challenge' is at the top."�

Although Siwon certainly showed he was willing to dedicate his time to the show, HaHa wasn't convinced that he had the look. In the clip above, HaHa states, "You're too good-looking. I don't like your nose bridge," then challenges Siwon to make an ugly face.�

This calls for the face of a derp master. Although Siwon fails to impress HaHa at first, he makes HaHa keel over in laughter with his second attempt.�

Check out Siwon's funny attempts in the clip above!�