Maybe Jung Yonghwa is making SNSD's maknae lose her concentration on stage, but once again the maknae slipped up while performing Oh! On this week's Inkigayo, you can see Seohyun raise her arm too early near the end of the performance. She corrects herself quickly and thankfully didn't squeak like last time, but it was a mistake nonetheless. What I don't understand is how netizens caught this. It happens in the corner of the screen for about half a second! Either way, it's too cute to describe. Check out the video below: http://www.youtube.com/watch?v=UhDrV2r9nBo