Song Sam Dong is a fictional character from the South Korean television series Dream High. He is portrayed as a talented but initially shy and awkward student with a passion for music. Throughout the series, he faces various challenges while pursuing his dream of becoming a successful singer. As the story unfolds, Sam Dong develops his skills and gains confidence, forming strong relationships with his classmates, including Go Hye Mi and Jin Gook. His journey highlights themes of perseverance, friendship, and the pursuit of dreams in the competitive world of the performing arts.