Hilary Duff attended a Kendra Scott Jewelery grand opening event on Wednesday, August 10, 2011. Hilary wore a strapless black dress. Mike and Haylie were also on the red carpet with Hilary.
From the signage behind the red carpet, it looks like Hilary's favorite charity Blessings In A Backpack was also involved with this event.
Mike kisses Hilary on the red carpet:
Hilary and Haylie with Kendra Scott:
Source: Getty Images.