Katy Perry is promoting her new eyelashes by 'Eyelure' at the Americana at 'Brand' in Los Angeles.
The retro singer looks adorable in her turquoise 'Anabelle' double wool crepe Roland Mouret flair dress adorned with a cute black ribbon belt.
She insist on rocking blue hair, and this occasion she styled it into a 1940's up-do with large bangs.
She finished off her look with Giuseppe Zanotti blue suede tied heels.
