The weekend’s best in nightlife, music and art. For even more, check out Nightlife Agenda.

Writer-comedian Colin Jost is joining the "Weekend Update" anchor desk on "Saturday Night Live." But first, he's coming to Arlington. (AP Photo/NBC, Lloyd Bishop)

Through Friday: If you don't yet know Colin Jost, you will soon: In little more than a week, the "Saturday Night Live" writer will replace Seth Meyers in the comedically influential Weekend Update co-anchor role. (Meyers is heading off to take over NBC'S "Late Night.") Before Jost hits the anchor desk with Cecily Strong on March 1, he's hitting one of the area's big comedy haunts, the Arlington Cinema & Drafthouse. His two-night run begins Thursday with a 10 p.m. and wraps up with a 7:30 p.m. show Friday.

Friday-March 8: Yes, the Intersections Festival has dance, music and theater, like any other respectable arts festival in Washington would. But it has one act the others don't: a dog circus. "Mutts Gone Nuts" is one of the 60 acts, many of which are free, that will be featured in the Atlas Performing Arts Center's 16-day festival. If dog tricks aren't your thing, catch performances from such artists as the Jane Franklin Dance Company, UrbanArias, Christylez Bacon and Mary Alouette; price varies by performance.

Friday: Kacey Musgraves won awards for best country album (the insta-classic "Same Trailer Different Park") and best country song ("Merry Go 'Round") at the Grammy Awards last month. But if you want to get close to country music's woman to watch, you'll need to arrive early when Musgraves serves as an opening act, along with Kip Moore, on Lady Antebellum's "Take Me Downtown" tour. Doors open at 6 p.m. Friday for the show at George Mason University's Patriot Center. Tickets are $59.50.

Saturday: Few among us have had time to watch every Oscar-worthy film that came out last year. Good news: The AMC Best Picture Showcase, which shows all nine Best Picture nominees in two eternal, but intriguing, days of back-to-back screenings, returns to this weekend. Saturday, see four films including "12 Years a Slave," and "The Wolf of Wall Street" (bring eyedrops, and maybe even a pillow); next weekend brace yourself for the last five, including "American Hustle." Tickets are $60 for the whole shebang; or $30 for Saturday's screening.

Saturday: Who would have guessed that an H Street pizzeria would become the neighborhood’s most essential DJ venue? On the heels of appearances by Talib Kweli and Tony Touch, RedRocks welcomes famed party-rocker Rich Medina. Having founded the legendary Jump N Funk Afrobeat parties in the early 2000s and the New York mainstays Happy Feet (with Bobbito Garcia) and Open at Santos’ Party House (with Q-Tip of A Tribe Called Quest fame), Medina has more musical cred than most. He’s making his first visit to RedRocks, and there’s no cover charge. Even better: Jahsonic (of Marvin’s Main Ingredient Mondays) and Sharkey are on the bill. Doors open at 8 p.m.

Saturday: There's officially only a month left to proudly accumulate your winter weight before it's spring, and that couple of extra pounds you've added around the midsection is no longer viewed as mere insulation from the cold but a problem worthy of a CrossFit membership. Till then, there's PieFest, a bakeoff between area sweets purveyors including Blind Dog Cafe, Pie Sisters and more. The event is set for Saturday at the Brixton; get tickets here.

Sunday-June 29: The National Gallery of Art recently acquired a huge cache of German expressionist paintings from art enthusiast Ruth Kainen. The 123 works include etchings, watercolors, drawings and lithographs from the likes of Emil Nolde, Karl Schmidt-Rottluff, Ernst Ludwig Kirchner, as well as expressionist precursors Otto Dix, Kurt Schwitters, Egon Schiele and others. The collection, dubbed "Modern German Prints and Drawings from the Kainen Collection" will go on view on the ground floor of the National Gallery of Art's  West Building.