Hilary Duff: Birthday Lunch with Haylie!

Hilary Duff celebrates her birthday with big sis Haylie while out in Los Angeles on Wednesday (September 28).

The actress and mama-to-be turned 24 on Wednesday – happy birthday, Hilary!

PHOTOS: Check out the latest pics of Hilary Duff

“Just left the vet w/Lola(just a checkup) and got serenaded by about 20 paps with roses and a happy bday song! Very sweet and funny!” Hil wrote on her Twitter account.

“Yay. Thanks soooooo much for all the bday love y’all! It’s so nice and I feel so special!” she added.

15+ pictures inside of Hilary Duff out and about on her birthday…