Musical Groups With the Best Harmonies

The most beautiful harmonies ever recorded. Sadly, they're fairly unheard of among the younger generation. They are at their best on In My Room. - PetSounds

No one had better Harmonies and many groups who came after learned from the Beach Boys.

I agree totally with you on The Beach Boys, PetSounds. They are always in perfect harmony. My personal favourite example of this is Fun Fun Fun. But also adore In My Room... - Britgirl

Best harmonies ever put on tape. - NvGNick

Excellent list, PetSounds. The contrapuntal sound of this band with the four voices--alto, soprano, tenor, baritone--just sends me right over the edge. The group said that when they sang really closely together, there would be an overtone like a 5th voice, which they called Harvey. John Phillips was a master at arranging their four voices to maximum effect. I could go on and on and on, but I'll stop now.

P.S. Fleet Foxes are awesome - Blue_Devereaux

The Sound of Silence is their best. Don't worry, it's not just white noise. On the contrary, it's one of the greatest songs ever recorded. - PetSounds

Although they were heavily influenced by the Beach Boys, their harmonies are quite different. A more raw, unpolished sound overall in the early stages, but it got smoother as they progressed. Listen to Nowhere Man. - PetSounds

Queen has the best. That statement is obvious

Queen is for sure in top 3, possibly one

Umm...
I can name several songs that consist great harmony;

Bohemian Rhapsody

You're My Best Friend

Somebody To Love

Killer Queen

We Are The Champions

Fat Bottomed Girls

Bicycle Race - mmarce445

The lead singer was heavily influenced by Queen and The Beach Boys but he does something different because he’s the only good singer in this band:

1) he creates and sings everything - lead and backing vox with harmonies. That’s really lots of work and singing but the result is absolutely beautiful;
2) then, if he wants to create a choir effect, he applies his signature practice of overdubbing his own voice multiple times in complex, overlapping harmonies.
Pure genius.
So his voice is the only one you hear but it’s a godly voice. Enjoy.

Songs with moderate overdubbing:
Carry the Blessed Home, Distant Memories, Turn the Page, Otherland

Songs with more complex harmonies and massive overdubbing, creating a huge choir effect:
The Throne, At The Edge Of Time - Metal_Treasure

This band performs Gregorian chant-inspired versions of modern pop, rock and metal songs.
Amazing vocal harmonies.
Songs:
Nothing else matters (Metallica), Comfortably Numb (Pink Floyd), Sweet Child Of Mine (Guns N Roses), The Unforgiven I (Metallica), Kashmir (Led Zepp). - Metal_Treasure

The lead singer of this band also sings for Blind Guardian described above and he applies the same techniques here, too, but here the choir effect is not that big. However, vocals and harmonies are still extremely impressive. Again, no other singers - it's only his voice on all song sections. Music genre is a bit different.
Songs:
My Last Sunrise - especially the intro and outro, the outro is exemplary;
Heaven Denies - especially the outro at 4:20 (it's gregorian chanting and it's one of the most beautiful vocal performances in the world);
Rage of passage - short intro song. - Metal_Treasure