Best summed up like this. The F&F song isn't yours, even if you edit the video and give credits, the original owner of the song can STILL either:
1) Put a third-party claim on it, which mean all ad revenue goes to them and not you.
2) File a copyright strike and take down the video, which will put your account in bad standing...again.
Yeah, so you
SHOULD NOT use the F&F song. Use royalty-free music, like the guy said. You'll still get money provided you read the terms carefully. Some royalty-free music cannot be monetized, read the terms.
Don't mess with Youtube's copyright, I say. It's brutal. Here're some tips:
https://www.youtube.com/copyright_school
And also, like what many others said, Youtube won't magically earn you money.