Alicia Keys is seen here on the promotional circuit for her latest movie ‘Quantum of Solace’ that is due out in theatres in a matter of days. Alicia stopped in to visit the Late Show with David Letterman and went for a look that was understated but elegant and glamorous nonetheless. Alicia is one of those hot stars that is known for her versatile looks, and this is one advantage to having long, luxurious hair. We have seen Alicia put the glam on with a wild head of crazy curls, among many other looks. Here, Alicia has gone for a look that is sleek and polished and amps up the glam factor with a sleek, shiny finish. To accomplish this sleek look, you want to run some straightening serum through towel-dried hair. Blow dry your hair with a flat paddle brush from roots to tips, and you want to pull your hair straight with the brush and blast the heat directly on the hair shaft. After your blow dry, use a wide flat iron to smooth out your hair and make it sleek along the entire hair shaft. Once you have gone over your hair with the flat iron, spray some anti-humectant all over your head, and then go over your hair with the flat iron once again. This heat will lock in some shine and also seal the cuticle shaft for a sleek, straight finish. You can finish the look with some glossing serum if you want some extra shine that will last all day.