This piano-playing popster broke out last year when her song "Jar of Hearts" was featured on an episode of "So You Think You Can Dance"-an ideal forum for Christina Perri's music, given that all the onscreen acrobatics are likely to distract you from lyrics like "You're gonna catch a cold from the ice inside your soul." Perri doesn't prove herself much more of a wordsmith on "lovestrong.," her first full-length: "How the hell does a broken heart get back together when it's torn apart?" she wonders in opener "Bluebird." Later, "Penguin" finds her using the cuddly Arctic bird as a metaphor for the type of soulmate only fate can bring one's way. Working with producers Joe Chiccarelli and David Hodges, though, Perri delivers her humdrum thoughts appealingly enough, as in the spirited kiss-off "Bang Bang Bang" and "Distance," a delicate ballad with strings arranged by David Campbell. Either would be perfect for "Dancing With the Stars."