Song Ji Eun – "Going Crazy" (feat. Bang Yong Kook) Aside from dipping her head in blue hair color, Secret's Ji Eun has also gone solo this month with her single, "Going Crazy," where she has paired her thin voice with the throaty deepness of Bang Yong Kook's rap.  A rather interesting combination, but the two actually blended well enough to pull this song off. "Going Crazy" opens with Ji Eun in the comfort of the soft spot of her voice (i.e. whispering) over a nice piano line.  The rest of the song floats along the same plane with an occasional intrusion of rap that has, admittedly, thrown off the flow of this song for me by a hair. The simplest way to put it is by describing this song as a "Bang Yong Kook song featuring Ji Eun" instead of the way it's supposed to be.  There's just not enough of Ji Eun's lovely voice to satisfy my appetite; not to mention that she's basically restricted to repeating the same lines over and over again.  Okay, the structure levels out by the middle of the song, but it wouldn't hurt to sand the edges down a little. This, of course, is in no way a diss to the rapper, because he does a fine job of balancing out the low ends of this song, and these kinds of rap-meets-pop tunes fare well among the best of us.  Relating to that point, "Going Crazy" has become a popular tune in my music library. I hope to hear Ji Eun give a spicy up-tempo a try, because she sounds amazing when she's going crazy on the dance floor to songs like "Magic" and "Madonna", both songs with as much energy as Beyonce's "Crazy In Love." 4.6/5 --- --- Kim Hyung Jun – "oH! aH!" Kim Hyung Jun's single "oH! aH!" has scurried onto the scene recently as one of the cleanest, prettiest, and utterly addicting male idol songs of the month. Kim made an appearance in the last bundle of reviews a couple of weeks ago, and because I wasn't patient enough for the release of the entire mini album, the chances of a full "My Girl" review have flown out of the window. However, here's another song that has caught my attention and will probably turn heads for first-time listeners. "oH! aH!" is a great example of the kind of appeal a good Korean pop song possesses, and what I'd say drew me into the craze to begin with. For a lack of better words, it's all in the production; this song's use of synths and ambience is absolutely gorgeous, and they seem to absorb Kim Hyung Jun's voice by a mysterious osmosis and lift the entire feel of this song into the air.  More impressive is the way this song unfolds and climbs from one verse to the next.  I wasn't even expecting a rap line, and because this song's pace was so mellow in stride and subtle in delivery, there was no way of anticipating it.  Yet, it fit right in like it was just meant to be there. When a song has this much breathing room and such a feel-good tone, how can one possibly not enjoy it? 5/5 --- --- What are your thoughts on these singles? — Suggestions for a future review?  Hit the author up on Twitter (@rothsresidence) or via e-mail (arnold.arteaga@allkpop.com)! — Note: This article does not reflect the opinions of allkpop, only of the author.