[M X]

01. Lady Gaga - Bad Romance
02. Britney Spears - Let Go
03. Britney Spears - If U Seek Amy
04. Mariah Carey - The One
05. Sugababes - Shape
06. Mariah Carey - Lead the Way
07. Mariah Carey - Obsessed
08. Lady Gaga - Paparazzi [live at VMA09]
09. Lady Gaga - Poker Face
10. Britney Spears - Circus
11. Britney Spears - Shadow
12. Mariah Carey - I Want to Know What Love Is
13. Mariah Carey - Angels Love
14. Martina McBride - Concrete Angel
15. Britney Spears - Toxic
16. Mariah Carey - Touch my Body
17. Rihanna - Photographs (ft. will.i.am)
18. Justin Timberlake - What Goes Around, Comes Around
19. Rihanna - Te Amo
20. Rihanna - Cold Case Love
21. Mariah Carey - Yours
22. Lady Gaga - Brown Eyes
23. Lady Gaga - Monster
24. Britney Spears - Everytime
25. Britney Spears - Touch of my Hand

That's on only one though, so it varies.