Toward the middle of the song, when they "draw out" the title. Even though the title appears regularly in the chorus section, meaning "all for love", I am stressing this particular part of the song since the title seems to be by itself here. The reason it sorta stands out is that it could mean "all 4 (people) love" (with love being a verb) -- a potential 'hidden' meaning -- rather than "all for (preposition) love (noun)", which is likely the intended meaning, as implied in the chorus, where it appears at the end of various phrases ("...do it all for love"). I'm placing it here because there is really no other section that it could go in.