About 400 guests raised more than $4 million for the Hong Kong International School at its 'We are the World' annual fund-raising ball at the Grand Hyatt hotel. There was plenty of music. A live band entertained guests who were later diverted over dinner by a wonderful tap-dance performance by middle and high-school students of the Glenda Allen Dance Academy. To the delight of proud parents and glowing faculty heads, further presentations included a joint choir performance and a string ensemble by students, accompanied on the piano by Anna Lo, a graduate of the school. In furious bidding at the event's auction, the highest offer was a $120,000 wine dinner involving the choice of 1,900 vintages at the Island Shangri-La hotel's Petrus restaurant with wine expert John Koo. Prominent at the event were the school's head, William Wehrenberg and his wife, Jane; the ball co-chairs Sophia Kao Lo and Katherine Geicke; parents Gisele Ho, Mira Yeh and Susan Romano and the school's community and resource development director, Christina Tung.