It was an exciting weekend for celebrity moms as they celebrated Mother's Day with their little ones. Dads got in on the action, too, and treated the ladies in their life to a special day. Gwen Stefani spent time at a park with her sons, and Sarah Jessica Parker also hit the playground with her three kids. Jessica Alba stepped out with daughter Honor while Tobey Maguire got playful with little Ruby. Click through to see what they did!