The BRIT Award-winning former Pop Idol champion is the second celebrity to be announced for the dance floor this year, following politician Ed Balls.
Will's pretty thrilled about his chance to grab the Mirror Ball Trophy, saying: "As a fan of Strictly for years, I have always imagined myself on the show, but the timing has not been right... until now!"
We have high hopes for Will on the dance floor! He's been nominated for a Laurence Olivier Award for his role in musical Cabaret and used to take ballet lessons.
So far, the only other contestant confirmed is former MP Ed Balls, so there's no word yet on who else Will's competitors will be .
Ed's role was announced via The Chris Evans Breakfast Show on BBC Radio 2, where Ed said: "I'd like to say I'm just really excited about learning to dance on TV, but the truth is I'm also scared to death. Making a speech in Parliament seems a piece of cake compared to this, but hopefully I can stick around for a couple of weeks, and have a lot of fun in the process.
"Strictly is a firm favourite in our living room, and it feels like a dream to be going on myself, especially for Len's last series. I'm just hoping it doesn't turn into a nightmare too quickly!"
Head judge Len Goodman has confirmed this will be his final series on the panel as, at 72 years old, he wants to step down. He had been judging the UK series and the US edition, Dancing With The Stars, which meant jetting from LA to London every week.
Strictly Come Dancing returns to BBC One for its 14th series in September 2016