Lyric discussion by crumpler4 

Cover art for It Came Out of the Sky lyrics by Creedence Clearwater Revival

Great song. I loved to listen when I was a young teen and still love it today. The genre of music is certainly rock and roll, but it also fits the definition of “filk” music which includes elements of sci-fi, horror, etc. The song also fits the gene of political protest. A lot going on in a seemingly simple song.