Toni Braxton is letting it all hang out! The 47-year-old singer opted for a very daring ensemble while attending the UNCF An Evening of Stars in Atlanta Sunday night. The gown, which had a sheer top with black swirls that barely covered her breasts, proved that the "Unbreak My Heart" singer went braless to the affair. The see-through bottom portion of the dress also showed off Braxton's toned legs, which were covered up by thin pieces of black fringe and more curlicues on the top.??