The Blue Wiggle and Red Wiggle tell EW they were 'amazed' to learn Robert De Niro is a Wiggles megafan after a past 'intimidating' encounter with the star, and share an idea for how he can join them.

His book Out of the Blue, with the Wiggles’ Anthony Field, will be released on October 29 by Allen and Unwin. Greg Truman is a New York-based Australian writer.