When Hilda Mae Heifer's trademark "moo" starts sounding even worse, the other animals decide she is lonely and hold auditions to find her some singing partners.
- ISBN10 0061143766
- ISBN13 9780061143762
- Publish Date 1 March 2009 (first published 24 February 2009)
- Publish Status Out of Print
- Out of Print 1 July 2021
- Publish Country US
- Imprint Katherine Tegen Books
- Format Hardcover (Library Binding)
- Pages 32
- Language English