a question about EXO's new song Tempo
I'm trying to learn the korean version of EXO's new song Tempo in their new album Don't mess up my tempo. But I met some problems regarding some lyrics. At about 1:40 of the song, Chanyeol sings 여긴 내 구역 don't test me. or at least the lyrics say so, but when he sings he pronounced the word 구역 kind of like 구기역 can anyone please explain it to me how he actually sang the word in the song? Thank you very much.

Question

a question about EXO's new song Tempo
I'm trying to learn the korean version of EXO's new song  Tempo in their new album Don't mess up my tempo. But I met some problems regarding some lyrics. At about 1:40 of the song, Chanyeol sings 여긴 내 구역  don't test me. or at least the lyrics say so, but when he sings he pronounced the word 구역 kind of like 구기역  can anyone please explain it to me how he actually sang the word in the song? Thank you very much.

Answer

The singer's Korean pronunciation is not good enough. :)
I guess he would like to pronounce 구이억 for the extended version of 구역. 
But it actually resulted in 구기억 with the effect of ㄱ of 구