Mandy Moore: 'Happy Birthday, Erinn Hayes!'

Mandy Moore keeps it casual and breezy as she heads to lunch on Friday (May 25) in Santa Monica, Calif.

The 28-year-old entertainer grabbed a bite to eat then headed into the Jill Roberts boutique to do a little shopping.

PHOTOS: Check out the latest pics of Mandy Moore

Mandy recently tweeted a birthday greeting to her Family Trap co-star Erinn Hayes: “HAPPY HAPPY bday @hayeslady! Here’s hoping that you’re being celebrated for the fantastically rad lady that you are….”

10+ pictures inside of Mandy Moore out shopping…