Do your kids come running when they hear Ellie's voice? I know my seven year old daughter does! She loves to watch the app demo videos, even if it's an app we don't have. So if you have a Yo Gabba Gabba app, watch this video for Yo Gabba Gabba! Birthday Party now! You'll get to see some of what this app has to offer before you download it! It's also a great resource for teachers, to know if the app will work for your classroom needs.