Given the goody-goody image she cultivated on American Idol, Jordin Sparks seemed an unlikely candidate to sell a song like “Battlefield,” the title track from her 2009 sophomore disc. Last time I caught her, though, she came on way stronger than expected, making the Jonas Brothers (for whom she was opening) look like little boys. Not a miracle, perhaps, but a nice surprise. With Kate Voegele and Days Difference.
Tue., April 27, 8 p.m., 2010