The beloved star announced on Wednesday (13 June) that after this year, he will be handing the reigns over to another judge following more than decade on the panel of the smash hit BBC One dancing competition.
Explaining his decision to leave, Len said: "In 2004, I was asked to take part in a brand new BBC Saturday night show, and who would have thought me, old Len Goodman, would still be part of this amazing series more than 10 years on.
"This adventure began when I was 60 and now that I've reached my 70s, I've decided after this year it's time to hand the role of Head Judge to someone else. It is an honour being part of the wonderful Strictly Come Dancing family and I'm looking forward to my last series very much and to whatever comes next."
We'll miss you, Len!
Charlotte Moore, Director of Content at the BBC, says: "After 12 years, our wonderful Head Judge Len has decided it's time to hang up his Strictly Come Dancing shoes! I know we are all going to miss him tremendously, but I also know Len's final series is going to be full of unmissable moments and I hope audiences will give him the special send-off he so deserves."
As well as judging on Strictly Come Dancing, he has appeared on the panel of its US version Dancing With The Stars since 2005, meaning frequent jetsetting between London and Los Angeles.
This year's Strictly will see the return of judges Len, Darcey Bussell, Bruno Toniolo and Craig Revel Horwood, with Tess Daly and Claudia Winkleman back as co-presenters.
Strictly returns to BBC One for its 14th series this autumn.