Step up to the mic.

VIBE
M3: MCs, Mics and Metaphors
What: Sixteen artists respond to hip-hop’s big players through photography, paintings, sculpture, mixed media, and more.
Why: Mind on my money; murals on my eye line.
When: Thru Aug. 29. Opening party, Thurs., 6-8 p.m.
Where: The Gallery at Flashpoint, 916 G St. NW, b/t 9th & 10th Sts. (202-315-1310).

SEE
Heavy Hitterz
What: A collective of paintings and illustrations from the graffiti and street art scene.
Why: Spray it; don’t say it.
When: Thru Aug. 15. Opening party, Sat., 6 p.m.-midnight.
Where: Art Whino Gallery, 173 Waterfront St., National Harbor (301-567-8210).

WED
Carine’s Bridal Atelier Sale
What: Save up to 70 percent on sample gowns by Jenny Lee, Melissa Sweet, and more.
Why: Unbridal that enthusiasm.
When: Thurs., 6-9 p.m.
Where: 1726 Wisconsin Ave. NW, b/t R & S Sts., 2nd flr. (202-965-4696). R.S.V.P. to info@carinesbridal.com.

WATCH
The Hollow and The Boy Detective Fails
What: Catch discounted lab performances of new works from emerging composers.
Why: Legend of cheapy Hollow.
When: Thurs. & Fri., 6 & 8:15 p.m.
Where: Signature Theatre, 4200 Campbell Ave., Arlington (703-573-7328). Tickets online at ticketmaster.com.

SHOP
Proper Topper Sale
What: Up to 60 percent off hats, clothes (Rag & Bone, Nanette Lepore, and Tracy Reese), and accessories; 80 percent off everything on the patio.
Why: Mad props.
When: Thurs. & Fri., 10:30 a.m.–6:30 p.m.; Sat., 10 a.m.-7 p.m.
Where: 3213 P St. NW, at Wisconsin Ave. (202-333-6200).