'Dream High' has already been pinned as one of the most anticipated dramas for 2011 due to its idol line-up. The show just received another celebrity boost with cameos from Hallyu star Kim Hyun Joong, global soprano Jo Sumi, and Japanese girl group AKB48! Kim Hyun Joong has already started filming on the morning of December 7th with Bae Yong Joon at Incheon International Airport. Bae Yong Joon plays a CEO who wants to find a global star, and Kim Hyun Joong will take on the role of a top star in Asia. Jo Sumi will appear on the first episode, and she will meet Go Hye Mi (played by Bae Su Ji), who idolizes the soprano and wants to become the 'second Jo Sumi'. A representative from 'Dream High' expressed, 'It was difficult to cast Jo Sumi. She will act as a mentor for Hye Mi.' Additionally, three members from AKB48 will also make cameos in 'Dream High'. Source: Sports Korea via Nate