Rachel:
I've been cheated by you since I don't know when
So I've made up my mind, it [bad word] to an end
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, w-o-o-o-oh

Rachel with Santana and Kurt:
Mamma mia, here I go again
My my, how can I resist you?
Mamma mia, does it show again?
My my, just how much I've missed you

Kitty with Marley and New Directions:
Yes, I've been brokenhearted
Blue since the day we parted

Blaine and Marley with New Directions:
Why, why did I ever let you go?
Mamma mia, now I really know,
My my, I could never let you go.

Marley:
I've been angry and sad about things that you do

Marley with Rachel:
I can't count all the times that I've told you we're through

Marley with New Directions:
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.

Sam with Kitty and New Directions:
Just one look and I can hear a bell ring
One more look and I forget everything, w-o-o-o-oh

Sam and Blaine with New Directions:
Mamma mia, here I go again
My my, how can I resist you?
Mamma mia, does it show again?
My my, just how much I've missed you

Rachel with Santana and Kurt
Yes, I've been brokenhearted
Blue since the day we parted

Rachel and Blaine with Santana, Kurt, and New Directions
Why, why did I ever let you go?
Mamma mia, even if I say
Bye bye, leave me now or never

Marley and Blaine with New Directions, Santana, Kurt and Rachel:
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 you?
Mamma mia, does it show again?
My my, just how much I've missed you

Marley and Unique with New Directions
Yes, I've been brokenhearted
Blue since the day we parted
Why, (Unique: Why)
Did I ever let you go
Mamma mia, (Unique: Mamma Mia)
Now I really know
My my, I could never let you go. (Unique: Oh)

New Directions:
Whoa
Mamma Mia!