Elvis Can't be Seen
Elvis can make himself invisible by jiggling his hips counter-clockwise and spining clockwise. This creates an electromagnetic feild around him which bends light around him. This is based on the Philidelphia experiment. You might think what use is it to be invisible if you make a ton of sound? Well Elvis spins so fast he sucks the sound right back into the vortex (Black Hole).
Only if he stops suddenly will the sound and shock wave escape from the vortex. Still if you get close you can feel the electronic waves and a small humming sound. These sounds can sound like words. One time when Elvis was time traveling (he time travels by jiggling his hips clockwise and spinning counter-clockwise) a group of strange people heard him. This was how the cult of France was born. An after effect of this time twisting includes the nation of France and the nation of The Hamster Republic was wiped from the pages of history.
That's the story, Dudes, so those who saw him saw an imposter!!