Lots of celebrities have filmed public service messages to help spread awareness for breast cancer. Here are a few of them.

Alyson Hannigan, Emily Deschanel, Minka Kelly, Kat McPhee, Jaime King

Demi Moore

Ricardo Chavira of "Desperate Housewives"

Ashley Kate Adams - "1 Message"

Ronde Barber - Pro Football Player

Jake Delhomme - Pro Football Player