You never know what you're going to get at Wheatland Music Festival. Tom Hiddleston -- known for his role as Loki in Marvel movies -- took the stage at the festival on Saturday (Sept. 6), performing a couple of Hank Williams covers for the audience.

Hiddleston grabbed a guitar and played his own versions of two Williams songs at the fest in in Remus, Michigan over the weekend. The actor debuted the classic 'Move It on Over,' as well as the legendary tune 'I'm So Lonesome I Could Cry,' on which he was joined by Rodney Crowell.

Of course, the actor dabbling in Williams' brand of country music should be no surprise, since he's set to portray the legend in an upcoming biopic. Hiddleston will play Williams in a film titled 'I Saw the Light,' which will start filming next month in Louisiana. It's being directed by Marc Abraham, who also directed 'Children of Men' and 'In Time,' and will show Williams' rising to fame, while also portraying the effects the limelight had on his life. The production is supposedly going to include 'I'm So Lonesome I Could Cry,' so Wheatland was almost a dress rehearsal for the talented actor.

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