Erica Campbell + Tasha Cobbs + Isaac Carree

One half of hit-making gospel duo Mary Mary—the powerfully lunged sisters behind the single "Shackles (Praise You)"—Erica Campbell performs behind her debut solo effort, Help. While that album title might look like something you spell out in driftwood on a deserted island, Campbell is a seasoned showstopper, and is sure to ignite the stage at B.B.'s.