Since taking over his late father's band—the Zydeco Twisters—in 1993, David Rubin a.k.a Rockin' Dopsie Jr., has become one of New Orleans's premier attractions. Dopsie has been able to preserve the integrity of his father's zydeco music, but added a measure of showmanship few can match. Splits, stage dives and tumbles are as much a part of his set as playing "zydeco Boogaloo" and "Feet Don't Fail Me Now." Most weekends he performs in the New Orleans area, more often than not, to a packed ...