"Oath" Cher Lloyd ft. Becky G

Brat-pop princess Cher Lloyd has been one of my favorite new artists this year. Her breakout hit, "Want U Back," was among the summer's best, utterly charming in its grunting impudence toward an ex. Follow-up "Oath" trades sass for sweetness, losing some of Lloyd's cheeky allure in the process, but even professing love and devotion, she oozes a playful swagger that is instantly beguiling. Over a bouncy hook, Lloyd cherishes the fun she's had with her boyfriend, including the time they "crashed your dad's new car," and it's refreshing to hear a 19-year-old singer acting her age (take note, Justin Bieber). Guest Becky G is a flavorless non-entity; attempting to bite Lloyd's style, she mistakes quirky vocal delivery for having a personality. B