Sony's high-priority pop songbird Jessica Simpson can toss sophomore-slump trepidation to the wind with the justly titled "Irresistible," which sheds the pure pop leanings of past hits in favor of a d

Sony's high-priority pop songbird Jessica Simpson can toss sophomore-slump trepidation to the wind with the justly titled "Irresistible," which sheds the pure pop leanings of past hits in favor of a decidedly more R&B/crossover—read: contemporary—groove. This first cut from her sterling second set, due in June, goes at it with 21-gun gusto, featuring a seriously funk-fortified vocal from the power-piped 20-year-old, lots of savvy production tics, and a killer chorus that sets the track ablaze with warm-weather glory. Production from Bag & Arnthor presses beyond the norm, with sexy spoken passages and a mean midsection breakdown that give the track a street edge. Meanwhile, the cover art on the CD promo is enough to catapult the gorgeous blonde to sex-symbol status, and a videoclip playing off that will only add to the allure. Lyrically, the track calls for total fulfillment: "More than just physical, deeper than spiritual/His ways are powerful/Irresistible to me." This one will electrify radios far and wide, as the spring thaw makes uptempo records all the more appealing. Expect instant action and the potential to take this true talent all the way to the top.—CT