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, 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 

 Rachel with Santana and Kurt: 
 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 

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

 Blaine and Sam 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 Kitty: 
 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, oh whoa 

 Sam and Blaine with New Directions: 
 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 

 Rachel with Santana: 
 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 said 

 Sam and Blaine with New Directions: 
 Bye, bye, leave me now or never 
 Mamma mia, it's a game we play 
 Bye, bye, doesn't mean forever 

 Blaine with Santana and New Directions: 
 Mamma mia, here I go again 
 My, my, how can I resist ya? 

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

 Marley and Unique: 
 Yes, I've been brokenhearted 
 Blue since the day we parted 

 Marley, Kitty, Sam, Blaine and Unique with New Directions: 
 Why, 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: My, my, oh!) 

 New Directions: 
 Whoa oh oh oh 
 Whoa oh oh oh 
 Mamma Mia!