In an encore for thousands of her fans, Celine Dion sings "My Heart Will Go On," the theme song of Hollywood blockbuster "Titanic," as the perfect ending for her Shanghai concert last night. The Canadian diva performed a number of her hits, including "Power of Love"and "Because You Loved Me," at the Shanghai Stadium during a two-hour show. On the grand stage, the singer expressed her thanks in Chinese for the audience's enthusiastic response.