Foggy Bottom fanfare:

• Check out Fountain Fling on the Vern Saturday. State Radio will be playing, as well as GW band East Coast Caravan.

District must-dos:

• The Sweetlife festival, sponsored by Sweetgreen, is happening Saturday in Dupont. Local acts like U.S. Royalty and Phil Adé will be playing, and Hot Chip will DJ before their set at the 9:30 Club that night.
• Celebrate Earth Day at the Climate Rally on the National Mall Sunday. There’s an impressive musical line up as well, featuring acts like Passion Pit, The Roots, Bob Weir and Robert Randolph.
• The Eighteenth Street Lounge is having its 15th anniversary party on Sunday. Known as one of the more DJ-friendly clubs in the city, the venue will host Sam “The Man” Burns, Farid and Thievery Corporation, the club’s founders.