"It's not all bad. He does bring a lot of joy."
The book has already made it to No28 on the New Zealand best-sellers list, making it the only picture book to feature.
"I doubt whether it will sell as many as Wonky Donkey. Wonky Donkey is a phenomenon."
Today's free show and a performance at Palm Beach Plaza in Papamoa yesterday came after successful shows in the region's libraries last year.
Tauranga Paper Plus manager Toby Tagg said Smith's popularity inspired him to organise the free shows.
"He's got an amazing repertoire with kids and the songs that he does are very, very popular."
Today's show kicks off at 4.15pm at the Edgewater fan stage.