I had to do a double take when I saw Kirsten Stewart arrive at the Ed Sullivan Theater yesterday for her appearance on the ‘Late Show With David Letterman’.

This confident young woman with auburn hair and a beaming smile is almost unrecognisable.

I’m not sure which look I love more this or her Versace look.

What are the common denominators between those looks?

Perfect brand fit, confidence, attitude and a smile.

Her Herve Leger Fall 2010 dress is awesome. I rarely use that word, but it seems fitting on this occasion.

Brian Atwood black suede ‘Marlo’ pumps complete the look.

Loving the new hair colour. It really brightens up her face.

Does this girl own anything other than LBD?

Her “Twilight Saga: Eclipse New York” screening look will follow later.

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Credit: Style.com & Fame Pictures