The 4th edition of the 2010 Mnet 20's Choice took place this evening at the Sheraton Grand Walker-Hill River Park's swimming pool, and it was an ideal setting for the stuffy summer season. There was a noticeable lack of star power at the event, as SM Entertainment and YG Entertainment both passed on the chance to send their artists tonight. With the feud between Mnet and SME still ongoing, there was absolutely no chance of seeing their active artists like BoA, SHINee, SNSD, Super Junior, and f(x) attending this event. YGE also announced that Big Bang was busy with Japan activities, and Se7en had another schedule, so therefore no artists from their side would be attending as well. Regardless, the show had to go on, so let's view the photos of those who attended the blue carpet, which included Seo In Young, Nine Muses, Supreme Team, T-ara, miss A, 2AM, Yoo In Young, 4minute, and Hyun Woo. [gallery columns=2]