Photo by 13UnicornsPhotography.

SHOPPING: Check out the Trashcat Clothing Exchange, a monthly vintage clothing exchange that takes place every third Thursday of the month (like today), at Sova (1359 H Street NE). Trade your own vintage dresses, sweaters, shoes, jewelry, bags and scarves, or just show up and see what’s there to buy. Live bluegrass starts at 9 p.m. The event lasts from 8-11 p.m. Free.

MUSIC: Elvis impersonator Scot Bruce wiggles his hips and sneers that lip in a performance that marks the end of the Elvis at 21: Photographs by Alfred Wertheimer exhibit at the National Portrait Gallery (8th and F Streets NW). 7 p.m. Free.

>> Kylesa, Zoroaster and Fight Amp hit the Black Cat Backstage (1811 14th Street NW) tonight. 8 p.m. $13.

>> Kevin Saunderson, Measax and Solomon Sanchez play the U Street Music Hall (1115A U Street NW). 10 p.m. Free before 11 p.m., $10 after.

ART: Long View Gallery (1234 9th Street NW) is holding an opening reception for their new exhibit: Ernesto Santalla – Symmetries, featuring images of last year’s snowpocalypse. 6:30 to 8:30 p.m. Free, but please RSVP.

DANCE: Students from the Jacqueline Kennedy Onassis School at American Ballet Theatre perform on the Kennedy Center’s Millennium Stage (2700 F Street NW). 6 p.m. Free.

HAPPY HOUR: Movement For the People brings together comedians, poets, musicians and happy hour deals (including two-for-one beers ’til 7 p.m.) for their Party for the People event tonight at K Street Lounge (1301 K Street NW). 6-9 p.m. $3.