I think there's 2 different mixes of Hair released in BTW

[NemoMyName 899]

I was listening Hair from a CD rip and in the outro part at the end of the song and it didn't have the "oh oh oh" part it was just the instrumental, I was kinda confused because I remember the song with those background vocals at the end. I checked the song on Spotify and the "oh oh oh" were there. What version is the final?

[Ophelia 4,816]

maybe it depends on how does your speakers equalize the vocals, bass etc.

It seems to have the oh ohs in this rip:

[Anderson123 38,716]

I do remember that being a talk back in the day. Hair single and album track sounded a bit different. Not sure if it was the synth a bit louder or what but people noticed it.

[NemoMyName 899]

26 minutes ago, Ophelia said:

It seems to have the oh ohs in this rip:

Nope, it doesn't have the final "oh oh ohs" compared to the streaming version in the last seconds.

[SS77 2,040]

Yeah I remember everyone saying that the promo single mix was different from the final album version.
 

But the discussion focused mainly on the chorus backing vocals, as the promo single’s are/were significantly louder (sounding almost equally as loud as her lead melody) than that of the album’s. 

[Defmix100 6,419]

1 hour ago, Ophelia said:

maybe it depends on how does your speakers equalize the vocals, bass etc.

It seems to have the oh ohs in this rip:

this is it with them