Old Dog, New Tricks
A pint-sized novelty who made preteen girls swoon with his 2000 debut, Beware of Dog, Bow Wow has somehow evolved into an elder statesman in the hip-pop genre. Now 20, he has split with longtime producer Jermaine Dupri, and his sixth CD, Face Off — a collaboration with B2K’s Omarion — arrived last month. The Columbus, Ohio, native, whose real…