All Weekend Long:
- Monster Mania Con 18: A Tribute to Friday the 13th, Hunt Valley Marriott
- Capitol Jazz Fest, Merriweather Post Pavillion
- WTMD First Thursday featuring The Jason Spooner Trio and Old Man Brown, Washington Monument in Mt. Vernon, 5:30 p.m.
- Literary Deathmatch, Creative Alliance, 8 p.m.
- Three Dog Night and Creedence Clearwater Revisited, Pier 6, 6 p.m.
- Cross Keys Movie Fest: Shakespeare in Love, Village of Cross Keys, 8:30 p.m.
- Rihanna and Cee Lo Green, 1st Mariner Arena. 7:30 p.m.
- Steel Pulse, Ram's Head Live, 9 p.m.
- American Visionary Art Musuem 15th Anniversary Gala featuring Lewis Black, American Visionary Art Museum, 8:30 p.m.
Sowebo Festival Poster Auction, University of Maryland Bio Park Auction, 4 p.m.