Washington City Paper reports that bluesman Taj Mahal is replacing funketeer No. 1 George Clinton, who is ill, at a free "Hometown Holidays" concert in Rockville this weekend. Not exactly the same vibe, but Taj Mahal is definitely not a bad replacement--Mahal's cover of "Bourgeois Blues," and Parliament's "Chocolate City" kinda share a similar sentiment, no? Rockville Town Center, 1-10 p.m. FREE.

The fifth anniversary of daytime dance party Daylight is at Liv on Sunday. Support them so they can keep throwing weekly parties! Liv, 2001 11th Street, NW. $15.

Bailey's Crossroads punk pioneers Scream are at Black Cat tonight. $15.

Also this weekend: plenty of music from military bands for the Memorial Day holiday: The Wolf Trap summer season "blasts off" with fireworks and The President's Own United States Marine Corps band on Sunday (the event is free, but capacity is limited); B.B. King, American Idol Pia Toscano, and the U.S. Navy Band Sea Chanters also perform Sunday, at the National Memorial Day Concert on the West Lawn of the U.S. Capitol, but your best bet may be to watch the concert on PBS.