Tiffany

TiffanySHE'S ALL GROWN UPFromer teenybopper Tiffany doesn't look like a girl anymore, and she doesn't sound like one, either. The 30-year-old singer of such hits as I Think We're Alone Now and Could've Been has said bye-bye to bubble-gum pop. The Color of Silence, her first domestic album in a decade, showcases a more mature, rock-influenced groove. ''I'm thankful for the success of my early records, but I remember thinking, When am I allowed to get back to where I envisioned myself?'' she says....