Nick Jr. is celebrating the most special day of the year — YOUR BIRTHDAY! Watch this video and help kids sing-along to this catchy tune as their favorite characters from Blaze and the Monster Machines sing a very special birthday song! Then, listen as your Nick Jr. friends from Shimmer and Shine, PAW Patrol, and Bubble Guppies join Blaze and AJ to create this playful music mash-up. For birthday party ideas and more, go to http://www.nickjrbirthdayclub.com/. Have a blazing birthday!