What truly made the Pussycat Dolls have Nicole as the sole focus of the group? - YouTube

I was stumbling through some of their old videos and found that the quartet singing above - Nicole, Melody, Carmit and Kaya - were present in alot of their early songs [https://youtu.be/iBmVMCTx848?si=-P\_pa2rlgXAOUyG4](https://youtu.be/iBm