Hilary Duff at yoga class

"Getting in her daily dose of exercise, Hilary Duff stopped by a yoga class in Studio City, CA to kick off her Sunday (October 21).

The former “Lizzie McGuire” star sported an all-black workout ensemble, as she was spotted exiting the studio with her mat and water bottle in hand.

Clearly happy with the outcome of the weekend sweat session, Hilary tweeted, “Just did a little Sunday yoga with @AlisiaLeibel @yogashelter thank you..feeling happy, enlightened, and strong :) happy Sunday xx.”"

(SOURCE: http://celebrity-gossip.net/hilary-duff/hilary-duff-celebrates-baby-lucas-7-month-birthday-747391)