Jazmine Sullivan’s sophomore disc, “Love Me Back,” is something amazing. Sure, her first album was good, but what the 23-year-old powerhouse does on the second reveals a layer that 2008 debut “Fearless” had only hinted at.

Her first two singles, the Missy Elliot-produced “Holding You Down (Goin’ in Circles)” and Salaam Remi-produced “10 Seconds” pay homage to around-the-way-girl predecessor Mary J. Blige by taking bits of her early songs. But while Sullivan has done a great job of playing Philly’s version of the faithful (and sometimes vengeful) ride-or-die chick, she is not boxed in by the role.