For the last four years before the shows had kicked off, the 49-year-old had been largely absent from the public eye.
In 2017, he sparked headlines when he cancelled his last 14-month tour at short notice due to “unforeseen family circumstances”.
He announced the extra shows on BBC Radio on Thursday.
He said: “First of all, I want to say thanks to everyone who’s bought tickets to my tour, and I really do appreciate it.
“We’ve finally managed to book some more extra dates.”
Tickets will go on sale this Sunday from 10am for shows in cities including Newcastle, Leeds, Manchester, Sheffield, Birmingham, Glasgow and a 28th night at London’s O2 Arena.