kris,
I thought that I read somewhere that she was 18 and engaged. She was on the DWTS tour this year so I don't think she could have still been in high school.
I agree that Joey and Apolo did great. I also liked Ian and Cheryl's dance.
As far as AI, I was very disappointed last night. So my great surprise, I thought Sanjaya actually was one of the better ones.
Who would have thought???
Update ~ I just checked the dancer's bios on the abc website and it said that after graduating from high school, Julianne moved to Los Angeles to pursue her dream of dancing. So my guess is that she is at least 18. I couldn't find her actual age, though.
~Kathy