It’s taken O-Town more than a decade to reunite after their meteoric rise to stardom (via TV’s Making the Band) and subsequent descent to Earth. The original lineup (minus Ashley Parker Angel) update their deft harmony interplay and melodic pop/R&B sounds on Lines & Circles. Prince-ly slices of funk (“Chasin’ After You”), ‘80s-inflected dance tracks (“Playing with Fire”), and au courant EDM workouts (“Rewind”) raise the heat quotient, balancing the stripped-down romantic balladry of “Buried Alive” and “Got to Go.” “Skydive” is a heroic pop aria that shows off O-Town’s impeccable vocal moves to full advantage.