WASHINGTON — President-elect Barack Obama and his wife Michelle will twirl their way through 10 official inaugural balls on Jan. 20.

The Presidential Inaugural Committee said Wednesday that the Obamas would attend 10 official balls, one more than President George W. Bush and Laura Bush attended in 2005.

For ball-goers and Obama-watchers, a few questions remain: What will Michelle Obama wear? Which musical groups will perform? And will young daughters Sasha and Malia attend?

No word from the committee on those fronts.

Six of the official balls will be held at the Washington Convention Center, with others at Union Station, the Washington Hilton, the National Building Museum and the DC Armory.

But the biggest parties this time may well be unofficial.

MTV and BET are throwing televised parties, while the Creative Coalition will hold a gala to be headlined by Elvis Costello. Dionne Warwick is hosting the American Music Inaugural Ball, among other star-studded events.