she went on tour with him and worked at the lavish paisley park complex that serves not just as prince'squarters, but also has a full recording studio and performance venue. >> it was a beautiful experience to be able to be in the place where he, you know, kind of created his masterpieces. ♪ i want to be your fantasy >> reporter: prince's public persona may have been flamboyant and over the top, like in the iconic video for "kiss." but crystal says she found the private man to be quiet and unassuming. >> he was always a gentleman. when i would go grocery shopping, he would come out and get the groceries. he would take the trash out for me. he was always respectful to me. >> reporter: but her friendly boss was also suffering from a lot of pain -- a result of all those years dancing frenetically on stage. >> he pushed his body to the limit. you know, he wore those high heels whenever he performed, and he did stuff that you could not believe when you watched him on stage. >> reporter: after getting hip replacement surgery, prince could be seen using a cane -- like here at the 2013 grammy aw