Daesung revealed what he thought while G-Dragon suffered from hyperventilation during a concert! 

On the December 28 installment of MBC 'Radio Star,' G-Dragon explained why he experienced hyperventilation during a concert. He explained, "I am the weakest out of the group. The other members work out..." G-Dragon stated that he had to perform as GD & T.O.P, GD & Taeyang, plus his solo performance. 

He revealed, "I did 10 songs in a row. In the middle of it, I was hyperventilating." 

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About the incident, Daesung said, "I was watching staff run over with an oxygen mask and to give him massages, and I thought, is that part of a performance for Big Bang?" 

He added, "Weirdly, he was the only one who hyperventilated when we were shooting for a DVD [too]."