Try these...
a_reader
2013-08-31 12:39:45
( reads)
Not sure if the links below helpful...
Kennedy Center
http://www.kennedy-center.org/index.cfm
Strathmore
http://www.strathmore.org/EVENTSTICKETS/calendar.asp
Pop & Rock Concerts at Washington, DC.
http://www.ticketsupply.com/pop-rock--in-washington-dc-schedule.html
good luck and enjoy