The Black Eyed Peas rapper Will.i.am will debut his latest single on Mars.
The Voice judge has teamed up with Nasa, who will play his song Reach For The Stars on the surface of the red planet at 7pm BST tonight.
Nasa's Curiosity rover - which landed on Mars in early August - will blare the song out to the rocky landscape through its speakers.
Will.i.am - who recently signed a deal to appear in the second series of The Voice in the UK - said he was "blessed" to have his song chosen.
The song, which has been described as an ode to the singer's "passion for science, technology and space exploration," will be beamed back from Mars to Earth and played at a special event held by Nasa in Pasadena, California.
This project is a collaboration between Nasa and the rapper's i.am.angel Foundation - which aims to provide digital resources in US classrooms.
Will.i.am was present at Nasa's Jet Propulsion Laboratory when Curiosity landed on Mars, he tweeted:
We did it!!! We landed on mars...we did humans...humans landed curiosity on mars...