Is it a probe? Is it a rental spaceship? A scout team from the Romulan Empire? Or just a jagged rock...let's write the script together! Maybe "Plan 9 From Outer Space"!
1) "Space Truckin'" - Deep Purple
2) "Come Sail Away" - Styx ("They climbed aboard their starship and headed for the skies")
3) "Starman" - David Bowie
As for "Plan 9," well...awful movies don't get any better than this! NOTE: Most aliens bring large oak desks and old radio gear on interstellar missions...