region also serves as the headquarters for a number of major K-pop entertainment agencies including SM Entertainment and JYP Entertainment. Arts and culture In Korean popular culture, Gangnam is positioned as both the object of aspiration and a region that draws reproval for the perceived corrupt and immoral ways in which its residents acquired their wealth. The boundaries of Gangnam are often defined by its affluence and residents of Gangnam have been found to only recognize parts of Seoul with a standard of living similar or higher than their own to be part of Gangnam. The region has been described as a "gated community" with residents chastising other parts of Seoul as being 'old-fashioned' and 'unsophisticated.' Similarly, studies of Gangnam children have found that they hold negative views of non-Gangnam areas, describing them as "rough, dirty, countrified, smelly, and somewhat dangerous." Living is Gangnam is considered a status symbol, with both businesses and people actively seeking out the region as a means of exhibiting one's success. Although negative attitudes towards Gangnam residents are common among non-Gangnam residents, surveys have found most would still move to Gangnam if they were able to. Gangnam is sometimes divided into Taebuk () and Taenam (), referring to the regions north and south of the Teheran Boulevard respectively. Residents from the northern half are characterized as old money and the families of chaebols, while residents from the southern half are characterized as working professionals and overly concerned over their children's education as a result of their background. The real estate market frequently uses Gangnam to refer to solely the Taebuk neighborhood in the northern half of Gangnam District. The region has a high concentration of luxury brands, with the highest concentration in the Cheongdam neighborhood. The flagship stores of the Shinsagae, Hyundai, and Lotte department stores can all be found in the Gangnam region. More than 470 plastic surgery clinics are registered in Gangnam district, making up more than 30 percent of all clinics in the country. In the 2012 K-pop song Gangnam Style, the singer PSY parodied the cultural, lifestyle, and class distinctions associated with the nouveau riche of the Gangnam region. While the music video features the ASEM Tower and Trade Tower in Gangnam, most of the video was filmed outside of Seoul in Incheon. The 2015 action film Gangnam Blues followed the real estate development of the Gangnam area. Education Some of