Even in a tough economy, the Pennsylvania Ballet has arranged a nice holiday present for itself: a visit to the Kennedy Center. The ballet will bring The Nutcracker to Washington for seven performances starting Nov. 24. Kennedy Center is presenting Pennsylvania Ballet, which means the troupe collects a fee (I've asked the ballet to quantify that fee, but so far no response). This is the Kennedy Center's only Nutcracker of the season. In the past, they've presented ABT and Joffrey. A Pennsylvania Ballet spokeswoman says this is the first time the Balanchine version will be performed in D.C. This seems highly unlikely to me, but maybe some sharp reader will be able to tell me whether it's true. In any case, it's a wonderful bit of news that a company is adding performances when so many others are cutting back.