SNSD Can't Pronounce "TAXI" {Mr removed} SNSD - Mr. Taxi

At 0:34 to 0:37, when the chores pronouncing the word "TAXI", I heard someone sang "TERXE"4 TIMES.

AT 1:34 TO 1:38, same.

At 2:50 to 2:53, it the same ting happened.

At 2:57 to 3:00 again with the same pronounce "TERUXE".

It was as if they can't pronounce the "TAXI" word correctly or similar.

I think it is SNSD's leader, Taeyeon who pronounce the "TAXI" TO "TERRXE".

I think that they have done this song so many time, even in their Japan concerts. Why are the girls still making such a mistake repeatedly.