August 28 marks the 50th anniversary of Martin Luther King Jr.’s “I Have A Dream” speech. At the National Portrait Gallery, the museum is recognizing the event with a new exhibit that honors the man and the work he did. There’s enough in the exhibit to keep casual history fans engaged, but curators hope that visitors will come away with a fuller understanding of King’s life, as a minister, an orator, and as a family man. Read more >>> The exhibit is on view daily from 11:30 a.m. to 7 p.m. to June 1 2014 at the National Portrait Gallery, 8th and F streets NW. Free. (202) 833-8300. npg.si.edu (Caroline Jones)

EAT THIS

There are three big restaurant openings today, so take your pick. First up: Kapnos, Mike Isabella’s Greek-inspired restaurant on 14th Street NW serving small plates and pit-roasted whole animals. If you’re craving even more meat, check out Bearnaise, a steak frites joint in Capitol Hill from Good Stuff Eatery and We The Pizza chef/owner Spike Mendelsohn. And for a little Italian, there’s Casa Luca, the more casual eatery from Fiola chef Fabio Trabocchi. Kapnos, 2201 14th St. NW. (202) 234-5000. kapnosdc.com. Bearnaise, 315 Pennsylvania Ave. SE. (202) 450-4800. Facebook.com/BearnaiseRestaurant. Casa Luca, 1099 New York Ave. NW. casalucadc.com. (Jessica Sidman)

OH AND ALSO

Tonight: HR, the iconic hardcore singer and leader of Bad Brains,is now expressing himself through reggae music. He’ll perform at Tropicalia with experimental dub group Machet. Find more details on Facebook. 8 p.m. at 2001 14th St. NW. $10.

Tonight: If you’re looking for a little bit of throwback hip-hop, The Furious 5 take the stage at the Howard Theatre; High Command and Doc Strange & DJ Zu also appear. 8 p.m. at 620 T St. NW. $25.

Tonight: If punk and dance rock are more your thing, head to Comet Ping Pong for a full bill, featuring The Mantles, Title Tracks, Sick Sick Birds, and Juan Waters of The Beets. Check out the Facebook event for more information. 9 p.m. at 5037 Connecticut Ave. NW. $12.

Tonight: The Caribbean previews tracks from its new album and serve as guest DJs for post-punk night We Fought the Big One at Marx Cafe. 10 p.m. at 3203 Mt. Pleasant St. NW. Free.

Saturday: Don’t worry about their matching choir robes and big smiles: The Polyphonic Spree is not a cult, just an 18-member vocal group that aims to spread happiness. In recent months, the band has been as prolific as it is positive, releasing a Christmas record, a live album of Rocky Horror Picture Show songs, and a new batch of originals on last month’s Yes, It’s True. This new material and a back catalog of psychedelic singalongs could make for a surprising live show. Read more >>> The Polyphonic Spree performs at 8 p.m. at Sixth & I Historic Synagogue, 600 I St. NW. $20. (202) 408-3100. sixthandi.org. (Dan Singer)

Saturday: AFI kicks off its seventh summer of ’80s films with a screening of Videodrome, David Cronenberg‘s spooky horror film about a TV executive who finds a signal that broadcasts extreme images of torture. Just the thing you want to see at the end of the night. 11:30 p.m. at AFI Silver Theatre, 8633 Colesville Road, Silver Spring. $12.

Saturday: Local punk act Copstabber brings its aggression to the stage at DC9. Nervous Impulse, The Unabombers, and Sparklefight also perform. 9 p.m. at 1940 9th St. NW. $8.

Sunday: More than a decade before dubstep’s wub-wub-wub caressed the neo-neon glow of modern ravers, Squarepusher (a.k.a. Tom Jenkinson) had perfected “the drop.” In the years since his early seminal albums, 1996’s Feed Me Weird Things and 1997’s Hard Normal Daddy, Squarepusher hasn’t relied solely on drill ’n’ bass tactics: He’s also experimented with busy jazz-fusion techniques. Read more >>> Squarepusher performs at 8 p.m. at Black Cat, 1811 14th St. NW. $25. (202) 667-4490. blackcatdc.com. (Christopher Porter)

Sunday: The Hip-Hop Theater Festival runs throughout the week. It kicks off tonight with a performance by local hip-hop favorite Christylez Bacon. 6 p.m. at the Kennedy Center’s Millennium Stage, 2700 F St. NW. Free.

Want ToDo ToDay sent to your inbox five days a week? Sign up here.