Enjoying a beautiful day in Manhattan, Ashlee Simpson was spotted leaving her hotel to take care of her daily duties earlier today (September 7).

The “Pieces of Me” songstress was in a good mood as she made her exit, carrying a bottle of VitaminWater to promote proper hydration.

Last night, Ashlee and her super hot husband Pete Wentz were spotted at the 2010 US Open Tennis Championship at the USTA Billie Jean King National Tennis Center.

They joined fellow celebrities Cameron Diaz, Gwen Stefani, and Gavin Rossdale as Roger Federer beat Jurgen Melzer.