Friday It's a good night for a trip back in time. If you've seen "Dreamgirls" (or even if you haven't), you can see the real thing as Mary Wilson of the Supremes continues her engagement at Blues Alley (202-337-4141) doing two shows each night through Sunday. And at Rams Head Live (410-244-1131) in Baltimore, the O'Jays, who brought us such classics as "Love Train," "For the Love of Money" and "Use Ta Be My Girl," will perform. Saturday The Black Cat (202-667-7960) will be grooving with Si*Seand Orquestra Asheon the main stage. Si*Se mixes electronica, soul and Latin music (and a live band). Orquestra Ashe is a local salsa band that seldom has a problem getting a crowd moving.

SundayIf, like me, you love the thump of a bass, then you should be at Jammin' Java (703-255-1566) for BX3,featuring Stu Hamm, Billy Sheehanand Jeff Berlin. The three well-known and highly regarded bassists are touring together, and each has won numerous awards and has ended up atop various "Best Rock Bassist" or "Best Jazz Bassist" polls. . . . Soulful Robin Thickesounded good at Love recently, and if you missed that show, you have another chance to catch him this week. He's singing at Rams Head Tavern (410-268-4545) on Sunday before starting a two-night run at the Birchmere (703-549-7500) on Monday. TuesdayLately I've been enjoying "Heavy International," the new CD from the Eternals.The group draws from post-punk, dub and reggae and usually finds a song's sweet spot. Check out the group at the Rock and Roll Hotel (202-388-7625).

Wednesday Israeli folk singer Chava Alberstein is at Lisner Auditorium (202-994-6800). Her material ranges from the personal to the political. Also on the bill is David Broza, whose folk has a little more of a rock influence. . . . It showed up on a lot of Top 10 lists at the end of 2006, and now is your opportunity to find out why. The Clipse will be rapping its sometimes bleak but always well-told tales of life on the streets at Sonar (410-327-8333). -- Curt Fields