1 | | Prologue / Can't Wait | Jacob Smith, Charlie Barnard, Big Original UK Cast, Plymkids, Jessica Martin | B Minor | 10A | 102 |
2 | | Talk to Her / Carnival | Jacob Smith, Charlie Barnard, Big Original UK Cast | D♭ Major | 3B | 206 |
3 | | Say Good Morning to Mom | Jessica Martin | B Minor | 10A | 102 |
4 | | This Isn't Me | Charlie Barnard, Jay McGuiness | G Minor | 6A | 94 |
5 | | You're A Big Boy Now / I Wanna Go Home | Charlie Barnard, Jay McGuiness | D♭ Major | 3B | 206 |
6 | | Time of Your Life / Fun | Big Original UK Cast, Jay McGuiness, Gary Wilmot, Plymkids | C Major | 8B | 98 |
7 | | Welcome to Macmillan Toys | Big Original UK Cast, Charlie Barnard, Vicki Davids | C Major | 8B | 143 |
8 | | My Secretary's in Love | Diana Vickers | F Major | 7B | 76 |
9 | | Let's Not Move Too Fast / Do You Wanna Play Games | Diana Vickers, Jay McGuiness | F Major | 7B | 114 |
10 | | Stars | Jay McGuiness, Diana Vickers | F Minor | 4A | 74 |
11 | | Little Susan Lawrence | Diana Vickers | F Major | 7B | 76 |
12 | | Cross the Line - From "Big: The Musical" | Big Original UK Cast | B♭ Major | 6B | 139 |
13 | | It's Time | Charlie Barnard, Plymkids | D♭ Major | 3B | 206 |
14 | | Stop Time | Jessica Martin | B♭ Minor | 3A | 162 |
15 | | The Nightmare | Christie-Lee Crosson, Gary Wilmot, Plymkids | D♭ Major | 3B | 206 |
16 | | Dancing All the Time / I Want to Know | Diana Vickers, Jay McGuiness | B♭ Major | 6B | 118 |
17 | | Coffee Black | Big Original UK Cast, Jay McGuiness, Gary Wilmot, Lori Haley Fox | E♭ Major | 5B | 162 |
18 | | The Real Thing | Tash Holway, Ste Clough, Ross McLaren, Katy Osborne | D♭ Major | 3B | 206 |
19 | | When You're Big | Jay McGuiness | G Major | 9B | 92 |
20 | | We're Gonna Be Fine | Jay McGuiness, Diana Vickers, Big Original UK Cast | C Major | 8B | 74 |
21 | | Cross the Line - Reprise | Big Original UK Cast | D♭ Major | 3B | 206 |