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London based YouTuber Caspar Lee is one of the world's most famous vloggers, with his videos consistently attracting millions of views and in recent times have involved the likes of Will Ferrell, Kevin Hart and Maisie Williams.

Casper was joined by his mum, Emily, on the 5 live Hit List as she has recently written a book about his life.

The book, released later this year, includes stories about Caspar's childhood which he "didn't even realise" had happened.

Emily and Caspar, 21, went on to negotiate how the profits from the book sales will be divided, with mum promising Caspar a pizza for his troubles.

This clip is originally from 5 live Hit List on Sunday, 13 March 2016.