Singer Bruno Mars today at age 27. AP Before 27-year-old "Locked Out of Heaven" singer Bruno Mars was a Grammy Award winner and seven-time nominee playing the stage alongside Rihanna and Sting, he was just a six-year-old Elvis impersonator.

In 1992, Mars made a cameo in "Honeymoon in Vegas," starring Sarah Jessica Parker and Nicolas Cage, as a mini-Elvis giving his all to "Can't Help Falling in Love."

He may be slightly taller, but Mars' face hasn't aged a day. Watch below.