I heard this song and i don't know who its by or the name of it, help?!?

i heard this song and i dont know who its by or the name of it. at the beginning it sounds sort of futuristic and its a hip hop song. the person who sings it (sounds kind of like T.I.) says "galactic" and words that rhyme with it. he also says "bodies are moving.." i think its a recent song, i don't really know much else about it. does anyone know the song?!