Lil’ Kim has been one busy bee lately. The pint-sized rapper, who recently turned 35, reveals that she has been working on her next album and collaborating with Dr. Dre and Keri Hilson.   “I’m doing a collaboration with Keri Hilson. I’m so excited,” the Queen Bee told Hollywood tv  of the Polow Da Don production. “This is for her album though, so you might be hearing that song really soon.”