"Blast in a Cast" is a Doc McStuffins song from the season 1 episode "Break Dancer". It is sung by Doc, Stuffy, Lambie, Hallie and Chilly about all the fun things you can do in a cast to help time fly.
You can have a blast in a cast
We'll show you how, sitting down
There are other ways you can dance, whoo!
And the time will fly, bop your head to the beat
Dancing right in your seat
The time will go fast, have a blast in a cast
Decorate it with me!
Your body's gonna heal soon
Meanwhile, there's lots to do
To make the time pass, have a blast in a cast
Find your own--
Fun, we can sing, we can laugh
We can make the time fly