Have you read her blog? I would strongly suggest that she is not what typical christians think she is. I also noticed that she tends to give various interviewers what they want to hear even if its a small smattering like in the supplied interview. When in Rome....
If she is hardcore christian as some claim, you would think her website would be steeped in biblical talk etc. It is not.
In fact it has many new age symbols embedded in her paintings. Overlooked by christians?
I did notice in the video that the Lakers joke needing Jesus went over quite well with the christian crowd.