Warner Chappell Music UK, the publishing arm of Warner Music Group, has signed celebrated author and illustrator Liz Pichon to a global deal for her new children’s brand, “The Mubbles”.
Best known for the hugely successful “Tom Gates” series—which has sold over 16.5 million copies in 47 languages across 43 territories—Pichon is launching a new creative world aimed at younger audiences. “The Mubbles” blends colourful graphic novels, catchy original music, and a growing YouTube channel offering weekly videos.

Set on the sun-and-wind-powered Isle of Smile, “The Mubbles” introduces a joyful community of quirky characters including the Mubbles, Singing Earworms, and one-eyed Drib Drabs. The vibrant world is brought to life through upbeat songs like “Colourful,” “The La La La Song,” “Welcome to The Isle of Smile,” and “The Slug of Knowledge.”
“I love writing the song lyrics that feature in the books and then hearing the studio magic as my husband Mark Flannery writes the music and produces the songs we release commercially,” said Pichon. “”The Mubbles” is a platform that brings books, music and all kinds of creativity together for both children and adults to enjoy. Knowing we now have the support and experience of Warner Chappell Music behind us is very exciting.”
Paul Smith, VP of A\&R and Global Creative at Warner Chappell Music, added: “There is a really strong music component to “The Mubbles” that captures the imagination of kids and introduces them to the world of music. We’re proud that Liz has chosen to partner with us at WCM, and we’re looking forward to developing the musical aspect together.”
The first book in the four-part series, “Meet the Mubbles”, was published by Macmillan Children’s Books on March 13, 2025, and debuted in the children’s Top 10 book chart.
Alison Ruane, Managing Director at Macmillan Children’s Books, said: “The joyful multi-media world of “The Mubbles” captures children’s imaginations in multiple ways, from the bestselling books to Liz and Mark’s original and catchy music; the YouTube channel and all the make and do activities. It allows children to have a colourful and immersive experience in whichever way suits them best.”
Pichon added: “Music is a huge and joyous part of “The Mubbles” brand and I couldn’t be more excited to be working closely with Paul and all the Warner Chappell Music team as we work the growing music catalogue across the world!”
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