there's a difference between taking dance classes when you're younger, studying ballet when you're an ice skater or gymnast, or haven danced in a boy band or musical group. When you're CURRENT career is "PROFESSIONAL DANCER" you don't belong on DWTS. The Pussycat Dolls are not exactly known for their songs/music (sure, people remember them). They're known for their dancing and routines. Not only that, but Nicole isn't just a professional dancer, she STUDIED dance in school and MAJORED in it. A ballet or tap or jazz class here and there, doesn't equal the years of dancing/training that goes into a Dance MAJOR.
And I'm relatively sure that during her course of studies as a dance major, Nicole probably STUDIED ballroom dancing and probably learned a thing or two about the waltz or tango or the Quick Step. Chances are an ice skater, a gymnast, a Dallas Cowboy Cheerleader DIDN'T learn these styles/techniques during their training.
Everyone can argue that gymnasts or ice skaters or athletes have unfair advantage of the common "celebrity" but actors and actresses also have the performance training that the athletes have never had, which IMO, puts them on a level playing field. But to take a professional dancer, who dances for a living, has studied dance all of her life and put her up against the actors, actresses, models, and athletes - well, there's no competition then. You all know who's going to come out ahead (and this was proven when she recd 2 perfect scores during the 2nd week! How do you IMPROVE from there?)
I like watching DWTS to see these "stars" out of their element, learning new skills and working hard to improve. It's boring (and rather insulting, if you ask me!) watching someone who KNOWS how to dance and dances well (far above anyone else) whine and cry and complain each week that it "wasn't perfect" or that "I'm a performer - that's what I do" and the receive praise for doing what she already knows how to do, when these other people are working their a$$es off to catch up and try to do as well and then are criticized or harshly judged.
The final two this season SHOULD have been Evan and Erin and either one of them SHOULD have won -- they improved and learned and worked really hard and had come far farther than Nicole, who looked the same this week as she looked during Week One
you!!!!!! 
Rolling around on a bed is ALL they could come up with??? I guess we all know what they do at night 
And as I said before, I assume the producers know more of her background than anyone of us and they thought she qualified.
