Don't korean bands have names?
or was that a bit too much journalism for you? (a brief google reveals the group are Big Bang)
You seem a little surprised by this ("LG's upcoming widescreen Android tablet has turned up on, of all things, a Korean music video"). Actually though it's not unusual for Korean pop videos to promote new korean tech. Big Bang and 2NE1 did a single promoting the LG Lollipop phone, f(x) and Girls Generation both did a video for the LG chocolate, two different versions of the same tune. It doesn't stop there either, the video for Dara of 2NE1's single "Kiss" was a long beer advert...