I'm pretty sure that for track 9, the correct English would be "All I Saw
Was Stars". All is an indefinite pronoun, meaning that it can be either singular or plural. Take the sentence "All of the king's men were dead." In this sentence,
all is plural because it refers to men, which is plural, so it refers to more than one man. Therefore, it takes a plural linking verb,
were. In the sentence "All I saw was stars",
all is actually singular because its meaning in the sentence is to describe
the only thing that you saw, the single thing. And since the pronoun that the linking verb is taking is singular, the linking verb is singular, even if what follows it is plural.
I'm open for discussion on it though, since I know it's confusing.
EDIT: Take another example sentence, "All I want for Christmas is video games." In this sentence, all you want - the single thing you want - for Christmas is video games. Compare that to "All I want for Christmas are video games". That makes less sense, doesn't it? (I'm hoping the answer to that is yes
)