No politician or celebrity is safe from the musical satire of the Capitol Steps. Sung to familiar tunes, the lyrics will have you rolling in the aisles—and then humming them on the way out. The troupe performs around the country but always makes it home to do two shows a week in the amphitheater at the Ronald Reagan Building. Friday and Saturday at 7:30 pm. US$39. Tickets available through Ticketmaster at 703-573-7328 or http://www.ticketmaster.com. 1300 Pennsylvania Ave. N.W. (Metro: Federal Triangle), Washington, D.C. Phone 703-683-8330. http://www.capsteps.com.