the performance for "don't leave" was epic. the only thing that makes it short from perfection is jiyeon's absence (due to her injury). otherwise, it's simply stunning. each and everyone of them did really well even Qri and Boram. I'm impressed.
"Day by Day" on the other hand was a little lacking i feel. perhaps they have been too busy and therefore being a little tired to make it more impactful. as we might have already known, a few of the members are having slight health problems which most likely prevented them from singing well (i think a little bit of the performance was lipsynced?), but they still managed to pull it through despite their difficulties. let's applaud to their willpower!
boram was somehow very cute when she's singing her part in Day by Day LOL despite it being such a sorrowful song. And we can hear in the bridge part of the song that soyeon's voice is kinda out of form due to her sore throat. ahreum looks very sharp and capable, almost like an experienced performer already! see, she's not bad at all!