Lyrics:

“Mamma Mia” is featured in Guilty Pleasures, the seventeenth episode of Season Four. It is sung with lead by Kurt (Chris Colfer), Rachel (Lea Michele), Santana (Naya Rivera), and the New Directions as back-up.
I've been cheated by you since I don't know when
So I've made up my mind, it must come to an end
Mmm, look at me now, will I ever learn?
I don't know how, but I suddenly lose control
There's a fire within my soul
Just one look and I can hear a bell ring
One more look and I forget everything, oh whoa

Mamma mia, here I go again
My, my, how can I resist ya?
Mamma mia, does it show again?
My, my, just how much I've missed ya

Yes, I've been brokenhearted
Blue since the day we parted

Why, why did I ever let you go?
Mamma mia, now I really know
My, my, I could never let you go

I've been angry and sad
About things that you do

I can't count all the times
That I've told you we're through

And when you go, when you slam the door
I think you know that you won't be away too long
You know that I'm not that strong

Just one look and I can hear a bell ring
One more look and I forget everything, oh whoa

Mamma mia, here I go again
My, my, how can I resist ya?
Mamma mia, does it show again?
My, my, just how much I've missed ya

Yes, I've been brokenhearted
Blue since the day we parted

Why, why did I ever let you go?
Mamma mia, even if I said
Bye, bye, leave me now or never
Mamma mia, it's a game we play
Bye, bye, doesn't mean forever

Mamma mia, here I go again
My, my, how can I resist ya?
Mamma mia, does it show again?
My, my, just how much I've missed ya

Yes, I've been brokenhearted
Blue since the day we parted

Why, why (Why)
{Did I ever let you go}
Mamma mia (Mamma Mia)
Now I really know
{My, my}
I could never let you go (Oh!)

Whoa oh oh oh
Whoa oh oh oh

Mamma Mia!