Jagged Edge (2006)

Jagged Edge, the harmonizing quartet that once defined itself with agreeable wholesomeness like ''Let's Get Married'' dips an awkward toe into Cinemax territory on its fifth album, Jagged Edge. ''Watch You,'' an otherwise predictable ode to voyeurism, includes the least seductive lyric in R&B history. (It's far too long to quote, but it does feature the word ''undies.'') ''Sexy American Girls'' fares better thanks to a trilling Spanish guitar hook and sharp, tense production, but JE are far too earnest to make lasciviousness compelling. Their hips may be willing, but their hearts don't follow.