I attended the concert just for this. Finally saw BoA in person after 10 years, woohoo! Hell of a singer, hell of a dancer, and very rightly the queen of Kpop.
There were many other good performances too, like the following.
Shinee - Not a Shinee fan, but I like quite a few of their songs, and they had the best remixed stages for the night. Their costumes were probably rejected from a circus somewhere though, especially Taemin's ridiculous outfit.
SNSD - WWJD, or What Was Jessica Doing?! Watch from 1:25 onwards as she forgets where she is supposed to stand and fumbles her way through the next 30 seconds. She is also very obviously out of sync with the other members. Was quite funny to watch though.
Super Junior - Sorry sorry sorry sorry naega naega naega naega... Sorry, the only SJ song I know.
EXO - Quite a few of the guys slipped in this one, given that the stage was still soaking wet. Fast forward to 0:36 to catch the most obvious one.
TVXQ - They performed Humanoid, which was quite something given its so new the MV isn't even out yet.
f(x) - Probably the coolest video of the lot. Credit to the girls of f(x) for performing under the pouring rain. The rain was so bad a quarter of the audience left. The song was called Electric Shock, so the lightning flashing overhead was a creepily good contrast.
Some pictures I snapped with my iPhone from my seat while chilling between performances.
View of the stage from the seated area.
Snapped during an SNSD performance.
The fireworks at the end of the party.
Damn right.