"anchorman" is looming. >> thank you, brian. imagine you're visiting a quiet museum in washington, d.c. and all of a sudden, that breaks out ♪ ♪ let men their songs employ ♪ ♪ >> that is a flash mob and it appeared last week at the national air and space museum on the mall in washington, d.c joining us right now live from that museum is commander and conductor of the u.s. air force band, colonel larry lang, and behind him, the singing sergeant. good morning to you. >> hey, how are you doing there? >> doing okay. we're suckers for a good flash mob. tell us how -- first of all, why did you do it? >> we're always looking for creative ways to get our music out into the public and the flash mob idea came up last summe to reach