Singer Zach Porter of Allstar Weekend, which plays the Fillmore on Friday. (Arthur Mola/AP)
THU 16

“Little Shop of Horrors” A mysterious plant with a hunger for human flesh helps a shy young man win over his crush in the musical by Alan Menken and Howard Ashman, presented by the Olney Theatre Center. Thursday-Friday at 8 p.m., Saturday at 2 and 8 p.m., Sunday at 2 and 7:30 p.m., Wednesday at 2 and 8 p.m. Olney Theatre Center, 2001 Olney-Sandy Spring Rd., Olney. 301-924-3400. www.olneytheatre.org. $26-$54.

Tribute to Eva Cassidy A host of local artists pay tribute to one of the D.C. area’s favorite songbirds, who has become an international cult favorite in the wake of her untimely death in 1996. 8 p.m. Music Center at Strathmore, 5301 Tuckerman Lane, North Bethesda. 301-581-5100. www.strathmore.org. $25.

“A Clockwork Orange” In Stanley Kubrick’s shocking 1971 vision of the future, a young hooligan undergoes aversion therapy to make him less violent. Thursday at 9:20 p.m., Friday at 9:30 p.m., Saturday at 11:30 p.m. AFI Silver Theatre, 8633 Colesville Rd., Silver Spring. 301-495-6720. www.afi.com/silver. $11.50, seniors $9, age 12 and younger $7.

“Plein Air to Print” Hannah Phelps, grand prize winner of last year’s National Small Works juried exhibition, presents her white-line woodcuts made outdoors or inspired by landscape paintings created outdoors. Through Aug. 26. Pyramid Atlantic Art Center, 8230 Georgia Ave., Silver Spring. 301-608-9101. www.pyramidatlanticartcenter.org. Free.

FRI 17

Youth concert and voting drive Justice for Students in America and Pyramid Atlantic Art Center present a voter registration drive with performances by Montgomery County-based Spanish-English rockers Lazaro Band, Chilean hip-hop duo Rebel Diaz, Italian “hardstyle” DJ/producer DJ Axiom, and more. 4-9 p.m. Silver Spring Civic Building at Veterans Plaza, One Veterans Place, Silver Spring. www.thejsamovement.com. Free.

Gonzo’s Nose The D.C. party band plays cover songs from the ’80s and ’90s as part of Friday Night Live. 6:30 p.m. Rockville Town Square, between Rockville Pike, East Middle Lane, North Washington Street and Beall Avenue, Rockville. www.rockvilletownsquare.com. Free.

Allstar Weekend The young Californian pop band got its first big break from Radio Disney’s Next Big Thing contest. Honor Society joins them on their Summer of Love Tour (their ninth in three years). 8 p.m. The Fillmore, 8656 Colesville Rd., Silver Spring. 301-960-9999. www.fillmoresilverspring.com. $18.

Cellphone photos An exhibit of cameraphone shots by photographers age 18 and younger closes Friday, the same day a show of cameraphone photos by adults opens (through Sept.4). Glen Echo Park, Photoworks Gallery, 7300 MacArthur Blvd., Glen Echo. 301-634-2274. www.glenechophotoworks.org. Free.

SAT 18

Steel Panther This Los Angeles band is known for its ridiculous metal parodies. 9 p.m. The Fillmore, 8656 Colesville Rd., Silver Spring. 301-960-9999. www.fillmoresilverspring.com. $20.

Montgomery County Fair Animal exhibits, music, magic shows, pig races, carnival rides, demolition derby, monster trucks, camel rides, contests and more. Continues Thursday-Saturday 10 a.m.-midnight. Closes Saturday. Montgomery County Fairgrounds, 16 Chestnut St., Gaithersburg. 301-963-3247. 301-963-3247. www.mcagfair.com. $10 (does not include ride tickets), age 11 and younger free; passes available.

“Inform/Re-form” Artists repurpose materials, and sometimes create their own, for installations, site-specific works and mixed-media pieces. Closes Saturday. Mansion at Strathmore, 10701 Rockville Pike, North Bethesda. 301-581-5100. www.strathmore.org. Free.

SUN 19

“Afterplay” and “A Little Trick” Two of Chekhov’s popular characters meet in a cafe in Brian Friel’s “Afterplay,” and one of the Russian’s short stories, “A Little Trick,” is given a twist as a memory play. Both are presented by Quotidian Theatre Company. Friday at 8 p.m., Saturday at 2 and 8 p.m., closes Sunday at 2 p.m. The Writer’s Center, 4508 Walsh St., Bethesda. 301-654-8664. www.quotidian.org. $25, seniors and students $20.

MON 20

“Fever Dreams of Organic Machines: The Comic Book Art of Rafer Roberts” An exhibition of creepy comic book drawings in India ink continues. Through Sept. 8. VisArts at Rockville, 155 Gibbs St., Rockville. 301-315-8200. www.visartscenter.org. Free.

TUE 21

Mutts Gone Nuts Scott and Joan Houghton bring their team of rescued dogs to Rockville for a comedic circus-style variety show. 6:30 p.m. Rockville Town Square, between Rockville Pike, East Middle Lane, North Washington Street and Beall Avenue, Rockville. www.rockvilletownsquare.com. Free.

Buckcherry This Los Angeles rock band is known for the hit “Sorry.” 8 p.m. The Fillmore, 8656 Colesville Rd., Silver Spring. 301-960-9999. www.fillmoresilverspring.com. $25.

WED 22

Mad Science The interactive show teaches children about science. 10:30 a.m. Downtown Silver Spring, Plaza Stage, on and around Ellsworth Drive, Georgia Avenue and Fenton Street, Silver Spring. www.downtownsilverspring.com. Free.

John Henry England The guitarist performs original and traditional children’s songs. 6 p.m. Washingtonian Center, Lakefront Plaza, 9811 Washingtonian Blvd., Gaithersburg. www.washingtoniancenter.com. Free.

“Moneyball” Brad Pitt stars in the true story of how General Manager Billy Beane used computer analysis to build the ideal team for the low-balling Oakland A’s. This is the final film in Rockville’s Outdoor Movies on the Square series. 8:45 p.m. Rockville Town Square, between Rockville Pike, East Middle Lane, North Washington Street and Beall Avenue, Rockville. 301-998-8178. www.rockvilletownsquare.com. Free.

— Compiled by Carrie Donovan
from staff reports