They did, they did, they did, they did, they did,they did dance to the pop tunes of Abba at the43rd annual Washington Opera Ball at SwedishAmbassador Jan Eliasson’s residence in early June.Sweden’s Princess Christina was among theapproximately 600 guests who attended the black-tieball, “A Midsummer Night in Sweden.” Therewas no midnight sun, but there was Mrs. AnneBujon de l’ Estang, wife of the French ambassador,dressed in a stunning orange gown that practicallyglowed, along with candles and moonlight.Partying went on into the wee hours in a tent inAmbassador Eliasson’s garden. Dinners hosted by27 embassies preceded the ball. A record $2 millionwas raised.