FRIDAY: >> There’s another Hirshhorn AfterHours event planned for tonight, when the museum stays open late for a party, this time featuring DJ Spencer Product in a celebration of the new exhibit Wolfgang Tillmans. $10 in advance, $12 at the door, 8 p.m. to midnight. >> KRS-One is “The Teacher” for a reason — besides being an over-40 MC still preaching against violence, misplaced hatred, and government corruption, he’s also been a crucial influence for…

FRIDAY: >> DCist Exposed opening reception, OBVS. 6:30 – 9:30 p.m., at Warehouse. >> If you’re looking for more hip art happenings afterward, head over to the Hirshhorn After Hours party, which goes until midnight. It’s a celebration of the opening of Virgil Marti and Pae White’s new site-specific installation in the Hirshhorn lobby, which is the latest in the museum’s Directions series. Ian Svenonius is spinning and it looks like there’ll be a number…

FRIDAY: >> After a superb D.C. debut last year in the back room, Pleaseeasaur is returning to theBlack Cat tonight, this time on the mainstage, opening for San Diego’s Pinback. J.P. Hasson and his invisible sidekick Thomas Hurley III are apparently taking a break this month from recording a new Comedy Central-sponsored album to perform a number of valuable pubilc service announcements. Did you know, for example, that “Cobras are Totally Cool?” Or, for that…

WPAC is hosting the first of a three night experimental media series, titled After Effects, curated by local heavy Kathryn Cornelius. From 7 to 9 p.m. tonight at the Corcoran Gallery of Art’s Armand Hammer Auditorium, check out new video work from Jason Zimmerman, Chad Stayrook (a still from his everytime a scientist dies, a unicorn gets its horn is at right) and a live performance from videohippos at 8:20 p.m. Drink it In: It’s…