Three months before he takes over Terry Wogan's BBC2 radio show, Evans (43), pictured, will be telling Ryan Tubridy how he plans on filling the Irishman's shoes.
The bespectacled loudmouth, who broke like a ginger rash in the 1990s, is promoting his autobiography It's Not What You Think.
Brought up on a Warrington council estate, he found fame with C4 shows The Big Breakfast, Don't Forget Your Toothbrush and TFI Friday before becoming a multi-millionaire in 2000 when he sold his Ginger Media Group for £ 35.5m.
Along the way he walked out of BBC Radio 1 in 1997, because they wouldn't let him work a four-day week, and made headlines in 2001 when he married 18-year-old pop singer Billie Piper before going on an extended two-year bender. The couple have since split.
Evans' book details the Top 10 words used to describe him by tabloid newspapers with "Tosser" at number one, just above "Liar", "Tyrant" and "Drunkard". RTE insiders say Evans' Late Late appearance will be a more significant for Tubridy than anyone realises.
Evans was a huge influence on the rising Tubridy who styled himself on the nerd made good.