Last night in London, the Oscar winner -- who is set to appear in the big-screen adaptation of the musical, "Les Miserables" -- got on stage and performed with Elvis Costello. Crowe was a surprise guest at the Royal Albert Hall show, where he sang "Trouble" by Elvis Presley, than strapped on a guitar and played Johnny Cash's famous "Folsom Prison Blues."
Crowe confirmed his appearance in a tweet this morning:
It is true, sang with Elvis Costello and the Imposters at Royal Albert Hall last night. What a privilege.- Russell Crowe (@russellcrowe) May 24, 2012
Russell is set to use his pipes once again when he portrays Inspector Javert in "Les Miserables," which hits theaters this Christmas.
You can watch the video of Crowe performing above (the fun starts at around the seven-minute mark).