Strictly Come Dancing
The Strictly Come Dancing judge became emotional as he shared memories of his long friendship with Len Goodman.
The long-serving judge appeared on 14 series of the BBC dance show, as well its US counterpart Dancing With The Stars.
The ballroom dancer was one of Strictly's original judges when it launched in 2004.
"Love at first sight," Strictly judge Motsi Mabuse commented.
The Strictly champion said his latest venture was a "dream come true for me".
"See you in the movies," the departing dancer wrote on Instagram.
The much-loved BBC dance show will return for its 21st series in the autumn.
The presenter announced he was leaving the spin-off show after four years earlier this month.
With various reports about the judges making headlines in recent weeks, here's what we know about what the panel could look like this year.
Some have speculated the announcement might indicate some Big Brother news is also incoming.
About Strictly Come Dancing
Strictly Come Dancing' is a celebrity-pro ballroom dance competition, which launched on BBC One in 2004. It's inspired by former BBC show 'Come Dancing', and shares its name with 1992 film 'Strictly Ballroom'. Being one of the most popular shows on TV, it goes head-to-head with ITV's 'The X Factor' from September to December every year on Saturday and Sunday nights. It was originally hosted by Sir Bruce Forsyth and Tess Daly, but Claudia Winkleman has taken over from the veteran entertainer since he stepped down in 2014. The current judges are Craig Revel-Horwood, Darcey Bussell, Bruno Tonioli and Shirley Ballas, who has replaced Len Goodman as Head Judge. Alesha Dixon and Arlene Phillips have both previously sat on the panel. The show is now its 15th series, with the 2017 line-up made up of Alexandra Burke, Aston Merrygold, Brian Conley, Charlotte Hawkins, Chizzy Akudolu, Davood Ghadami, Debbie McGee, Gemma Atkinson, Joe McFadden, Jonnie Peacock, Mollie King, Richard Coles, Ruth Langsford, Simon Rimmer and Susan Calman. Last year's competition won by BBC sports presenter Ore Oduba and his partner Joanne Clifton, who followed in the footsteps of previous winners like Jay McGuiness, Caroline Flack, Louis Smith, Alesha Dixon, Harry Judd and Abbey Clancy. The 2017 series saw the departure of professional dancers Natalie Lowe, Joanne Clifton and Oksana Platero who all quit the show. Among the current line-up are Brendan Cole, Anton DuBeke, Kevin and Karen Clifton and Pasha Kovalev and Oti Mabuse.