Have a happy birthday—the backwards way! Full of fun and based on the hit song from Tom Chapin and John Forster, this is a celebratory birthday bash like no other.

Put your clothes on inside out, heat up the ice cream, and hang on to your party hats—because everything’s out of whack at the backwards birthday party!

From beloved, three-time Grammy-winning singer-songwriter Tom Chapin, four-time Grammy-nominated singer-songwriter John Forster, and with stunning illustrations from Chuck Groenink comes the zaniest birthday party you’ll ever attend.