Crawfish boils have returned to the patio of Acadiana Restaurant (901 New York Ave., NW) every Thursday and Friday. Shuck the shells off some shrimp and wash them down with Louisiana-tastic Abita beer. 4-6:30 p.m.; crawfish $13/pound; shrimp $17pound; beer $3.
Stop by the Capitol's West Lawn to catch a rehearsal of the National Symphony Orchestra's annual concert. Listen as country star Trace Adkins, opera star Denyce Graves, and "American Idol" finalist Katharine McPhee proffer their pitches before Sunday night's concert. 7:30 p.m.; free.
Viva Las Vegas! Welcome the weekend with host Trishelle Cannatella (of MTV's "Real World: Las Vegas" fame) at Midtown Lounge's Summer Kick Off Party (1219 Connecticut Ave. NW). Whip out the fancy pants and dance away workweek stress to DJ Benny C. 10 p.m.-3 a.m; cover charge: girls, free; guys $20 after 11 p.m.