Eric Dane Billie Beatrice Park Jessica Alba Honor Reecca Gayheart
Eric Dane Billie Beatrice Park Jessica Alba Honor Reecca Gayheart
Eric Dane Billie Beatrice Park Jessica Alba Honor Rebecca Gayheart

It was celebrity baby day at the park on Friday! Jessica Alba and hubby Cash Warren brought daughter Honor to the park and met up with fellow celeb couple Eric Dane and Rebecca Gayheart and their daughter Billie.

Check out our HUGE gallery of their playdate below -- cutest pictures ever!