Taking full advantage of the beautiful southern California weather earlier today, Hilary Duff was spotted out and about all by her lonesome.

The “So Yesterday” songstress donned a beige striped tank top layered over a white tank top with a pair of jeans and sneakers as she made her way to a friend’s house.

And after a brief visit, Miss Duff hopped back into her car and headed to her gym for an intense workout before heading back home.

And it’s a good thing Hilary is keeping her activity level high- she’ll need plenty of endurance when her new films “Foodfight,” “Stay Cool,” “Greta,” and “Safety Glass” start hitting theaters.

Gossip Girls

Enjoy the pictures of Hilary Duff out and about over the past few days (August 26-27).