Credit the marathons or motherhood, marriage or mojo, Katie Holmes works the walk outside Letterman like a regular on the runway!

The coziness of that crimson coat contrasted with her bare (and beautiful) legs -- I'm simply in awe of how she has truly (and justifiably) ascended to fashion icon status.

With all the current Andrew Morton tome-revealed buzz about Suri as the possible reincarnation of Scientology founder L. Ron Hubbard, I'm surprised there's not surpassing talk of Mrs. Cruise as a channeler of Audrey Hepburn. Smashing look, Katie -- kudos!