LeAnn Rimes:Too Thin?

The web is a buzz over Leann Rimes and her weight.

She insists she is healthy, but she looked gaunt when she appeared Monday at the College Basketball Championship game in Houston.

According to RadarOnline.com Leann Rimes says she's not too thin and is tried of defending herself.  She tweeted: "Dear lord! I do not workout too much nor do I starve myself. I'm so over this and moving on.

I know she was looking thin but when you look at these pictures you can REALLY see the difference!  What do you think? Is she too thin?