Honestly, GP Basic's early stuff was pretty great, especially when compared to what they did this year (Grrr. Production). Since they're young they can't do anything too sexy, and, since they're young one of their singers has a really rough voice which differentiates them from other girl groups.
Also, they sing about things other than love on occasion. Here's Jelly Pop.
Note the extensive use of CG...for random stuff. I think it mostly compliments what is actually going on. Also, the costuming is pretty good and the gangsta attitude is fun. It reminds me of 2NE1. In general, I enjoy Jelly Pop. It's a fun, random gangsta song that is danceable. It also has some good dance moves in it.