Ashley Tisdale, Jessica Alba, Camila Alves, and Taylor Jacobson are wearing Ray Ban RB 2132 New Wayfarer the 55mm frame. This particular wayfarer comes in 2 sizes the 52 and 55mm.
The 55mm New Wayfarer seems to be much harder to find in stores but definitely a better fit as seen in these pictures of these celebrities wearing them.
In these pictures, they are wearing the classic black and tortoise shell pairs and they all seem to own numerous Ray Ban Wayfarers in various sizes and colors as they all seem to give off a different look and fit.
This style seems to look great on most people, as the slant/angle of the original wayfarer is hard to pull of for some face shapes.