Gwyneth Paltrow

Country Strong star Gwyneth Paltrow takes the stage tonight at the 44th Annual CMA Awards to sing the title track of her new film.

Are you watching the CMAs tonight? Tell us here!

But she's not the first actor to show off his or her vocal chops. TVGuide.com looked back at a number of different actors whose pipes have surprised through the years.

Gallery: Actors who can really sing

Our roundup includes Robert Downey Jr.'s gruff take on Joni Mitchell's ethereal "River" on Ally McBeal and Meryl Streep in Mamma Mia! Plus: A controversial musical number from Mad Men's John Slattery also made the cut.

Check out all our favorites in our photo gallery, and tell us which singing actors you like best in the comments below.