The presenter went for a vintage approach to her styling, in a pretty polka-dot dress with front-split, which she cinched in at the waist with a black belt.
Shiny shoe-boots, a retro red handbag and clashing coral nails provided the finishing touches.
Alexa posed for a snap with cosmetics connoisseur Francois Nars, who was celebrating the launch of his new book, Makeup Your Mind: Express Yourself.
What do you think of Alexa's vintage-inspired styling? Let us know below.