Soccer: D.C. United plays AC Milan. [4 p.m. RFK Stadium, 2400 E. Capitol St. SE]
Hamlet, the Opera: Actors and directors discuss and sample of Shakespeare’s play. [7:30 p.m. Washington National Opera, 2600 Virginia Ave. NW]
Entrepreneurship Is On the Rise: Karetta Hubbard, Andrea Fuller and Karen Finney discuss. [6 p.m. Sewall-Belmont House, 144 Constitution Ave. NE]
In Our Time: An exhibit of photographs by Anne Lass. [10 a.m. Goethe-Insitut, 812 Seventh St. NW]
Non-Photos: A series of digital prints by Jean Noel L’Harmeroult. [10 a.m. Vivid Solutions, 2208 Martin Luther King Jr. Ave. SE]
The Buddha and Cornucopia: An exhibit on the sacred art of Tibetan Buddhism. [10 a.m. Freer Gallery of Art, 1050 Independence Ave. SW]
Workers Rights, Day Labor and Union Representation: A forum discussion on immigrant labor. [7 p.m. Anacostia Community Museum, 1901 Fort Place SE]
Diana Ross: The pop R&B singer performs live. [7:30 p.m. Strathmore, 5301 Tuckerman Ln. Rockville, Md.]
NSO Youth Orchestra Day: Promising local music performed by students with the National Symphony Orchestra. [6 p.m. Kennedy Center, 2700 F St. NW]
Underground scene
k-os: Rapper and instrumental hip-hop artist performs. [8 p.m. Black Cat, 1811 14th St. NW]
Pete Francis: Singer-songwriter from New York City performs with Shwa and Danni Rosner. [7:30 p.m. Jammin’ Java, 227 E. Maple Ave., Vienna]
