Until the End of Time

Justin Timberlake's sixth release from solo bow "FutureSex/LoveSounds" has earned props as the first time that six tracks from one release have hit the top 40 since Michael Jackson's "Dangerous" more than 15 years ago. With Beyoncé now stripped onto "Until the End of Time," it's quite likely JT will score the tenacious set's fourth No. 1—which has already catapulted into the top five at R&B. The meandering song is clearly a tribute to Prince, with its soul-soaked guitar-driven shuffle and funkified production—think "I Would Die 4 U" on Xanax. While Timberlake's vocals are smoothed out to near anonymity, as usual, he employs recognizable falsetto amid layers of appreciably creamy harmonies. It's Beyoncé, however, that really fuels the passion of the track, with her loosest vocal performance since "Listen" from "Dreamgirls"—and Timberlake is wise enough to sprawl her vocal across the song so that it commands the lead. The mantra here: unstoppable. —Chuck Taylor