Nicole never left the dolls, the rest of them quit. They broke up in 09, but in 2010 robin had formed a new pcd. Nicole was still in it. The other girls weren't. Apparently that didn't work out though. all of the girls could actually sing. of course they weren't vocal powerhouses, but they were underrated. The problem was that they were being treated unfairly. They wanted more opportunities to share their talent, but weren't given them. And nicole is a beast vocally. Ppl be sleepin on her. Even on the pcd albums she and melody was on point. Some artists just never get the right marketing strategy.