Actress Jun Ji Hyun and actor Kim Soo Hyun got involved in an unforeseen problem of the nationalistic sentiments between the Koreans and the Chinese. The issue started when actress Jun Ji Hyun and actor Kim Soo Hyun signed the contract to film a mineral water commercial in China, which marked the origin of water as Changbai Mountain instead of Baekdu Mountain. The Chinese government marks the mountain as Changbai Mountain, and the name Baekdu Mountain is officially prohibited for use. The Korean government sees Baekdu Mountain as part of its property and argues for Baekdu Mountain as the correct name. It spurred great controversy in Korea whether Korean stars should film a commercial that promotes the Chinese word for Baekdu Mountain. In related news, actress Jun Ji Hyun and actor Kim Soo Hyun had been some of the top models for many Chinese marketing and advertisement agencies after the success of the SBS drama "You Who Came From The Stars."