Ultimate Blue Frozen Margarita

Pour ingredient into a blender, over the ice, in order listed. Blend on "high" for a few seconds until drink has a consistancy a bit icier than a slurpee. Take lime wedge and run it over the edges of the margarita glass, then, upturned, place the wetted rims into course salt. Pour the now ready margarita into the now salted glasses and serve.