If you go to 3:43 and wait for the music to COMPLETELY fade, you can hear a faint, eerie whisper that kinda sounds like someone talking. It's extremely faint, so I'd recommend using earpieces if you have any around. It's almost on the exact millisecond the last part of the song fades out. I'm not confusing it with the very end where the song says "take it home". It's DIRECTLY after that.
I haven't seen this publicized by the media anywhere yet, and a few others on YouTube have also told me they hear it as well. I just wish I knew if this is an easter egg or a development flaw within the trailer.
[spoiler]Fun fact: At 0:36 seconds, if you pause when Michael's wife runs out screaming "Don't kill him!", you can see Franklin is actually the one that walks in front of her instead of Michael.[/spoiler]
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Sounds like "Take it off" to me