Scarlett Johansson at the Toronto International Film Festival

Scarlett Johansson at the Toronto International Film Festival

Scarlett Johansson is a huge fan of karaoke.

When she wants to unwind and forget about work and her responsibilities as a mother, the 31-year-old actress likes nothing more than singing along to her favourite pop hits.

And Scarlett's go-to artists are Fleetwood Mac and Billy Joel.

Speaking at the premiere of her new movie 'Sing' at the Toronto International Film Festival on Sunday (11.09.16), she shared: "I'm a big karaoke fan. (My favourites have got) to be Fleetwood Mac or Billy Joel. I just love it."

The blonde beauty - who has two-year-old daughter Rose with her French husband Romania Dauriac - also revealed what her favourite party song is, saying: "It's got to be Taylor Swift's 'Shake It Off'."

Scarlett was joined at the premiere of the animated film by her castmates Matthew McConaughey, Reese Witherspoon and Tori Kelly.

And on the red carpet Matthew - who voices koala bear character Buster Moon in the musical movie - admitted he enjoyed making the film because it's a departure from his usual roles.

He said: "I like a good beginning, middle and end. I like to not be quite sure where it's going, be somewhat surprised along the way. This (movie) is like that."