Will.i.am's music is out of this world.

The rapper's latest song "Reaching for the Stars," debuted from NASA's rover 'Curiosity' on Mars before it was transmitted back to Earth.

(SOUNDBITE) Will.i.am, U.S. rapper, saying (English):

"I wanted to show human collaboration and have an orchestra there and something that would be timeless where it's, you know, and translated in different cultures, not have like a hip hop beat or a dance beat."

It's never been done before, but if there is life on the red planet or beyond, the song could become a universal hit.