Here are the review links:

https://www.kirkusreviews.com/book-reviews/refried-bean/donut-novel-imaginary-mice-series/

https://www.kirkusreviews.com/book-reviews/refried-bean/sparkity-bonkins/

Here are the two songs: 

https://www.youtube.com/watch?v=u-1fwZtKJSM&list=RDTNwhnnJ2-nw&index=3

https://www.youtube.com/watch?v=TNwhnnJ2-nw&list=RDTNwhnnJ2-nw&index=1