Katy Perry works fast.

Original Version
1. Maroon 5 ft. Wiz Khalifa – “Payphone”
2. Ellie Goulding – “Lights”
3. Carly Rae Jepsen – “Call Me Maybe”
4. Ed Sheeran – “The A Team”
5. Gym Class Heroes ft. Ryan Tedder – “The Fighter”
6. Carrie Underwood – “Good Girl”
7. John Mayer – “Shadow Days”
8. Nicki Minaj – “Starships”
9. David Guetta ft. Sia – “Titanium”
10. Rihanna – “Where Have You Been”
11. Demi Lovato – “Give Your Heart a Break”
12. Pitbull – “Back in Time”
13. Kelly Clarkson – “Dark Side”
14. Katy Perry – “Wide Awake”
15. Neon Trees – “Everybody Talks”
16. Grace Potter & the Nocturnals – “Never Go Back”
17. Train – “Drive By”
18. Linkin Park – “Burn It Down”
19. fun. ft. Janelle Monáe – “We Are Young”
20. Usher – “Scream”

Jmunney’s Revision
1. Starships
2. Titanium
3. Lights
4. Wide Awake
5. Where Have You Been
6. Good Girl
7. Never Go Back
8. We Are Young
9. Call Me Maybe
10. Give Your Heart a Break
11. Burn It Down
12. Back in Time
13. Scream
14. Dark Side
15. The A Team
16. Everybody Talks
17. Payphone
18. Drive By
19. Shadow Days
20. The Fighter