In a new interview with Smashing Interviews Magazine, Julian Lennon, son of John Lennon and his first wife, Cynthia Powell Lennon, was asked if he'd ever worked on environmental issues with his brother, Sean Lennon, son of John Lennon and his second wife, Yoko Ono. The elder Lennon brother, who dedicated his latest book, The Morning Tribe: A Graphic Novel, to his younger sibling, told the magazine he had not; although, he and his brother had from time to time discussed the distinct possibility of a future collaboration.

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