Michelle Williams and Hugh Jackman love dancing together on set.

Michelle Williams

Michelle Williams

The pair are playing husband and wife PT and Charity Barnum in new movie 'The Greatest Showman' and Michelle has embraced dancing and singing with her co-star on set.

She told the Sunday Times Magazine: "I fell in love with singing and now I just want to sing. I find it terrifying, too, but once you do it, it's not like the dentist -- it's kind of fun. And dancing There are just certain things that make me feel I'm a kid, that make me feel I'm a little bit free and a little bit unbound and I love it. I dance with Hugh Jackman."

Michelle will also put her singing skills to the test when she plays the late Janis Joplin in a new biopic and although she is nervous, she can't wait to take on the role.

She said: "Nothing like a challenge. It's gonna get me going.

"It's going to be a lot of work, but I'm thrilled. I do like to fight. Not with people, but for things that I want. I really enjoy the experience of wanting something and crossing the distance to get it. I don't want a lot of things, but the things I do want burn me up inside and I get very excited about trying to reach them. I don't mean I want objects -- I want experiences and people. I wanted to play Janis badly and I reached for it. It's nice to want something and think about what you could do to pull that thing closer to you."