He's even going to be an agony uncle for the day for Radio One's Sunday Surgery. The special programme on domestic violence is being broadcast on 23 February.
"Domestic violence is a subject that is extremely close to
my heart," Will said.
"I am proud to put my name beside this cause and hope that I may be able help more women and children affected by the terrors of domestic violence, as well as help to create a wider awareness within our society," he added.
The Radio One show ties in with the BBC's Hitting Home season which focuses on violence in the home this week.
There's a Newsround Extra on this subject on Wednesday 19 February.
For more information or help with violence in the home, go to the NSPCC website on the right of this page
Hear Story
Try our Will quiz!
