C

1. Ryan Cabrera (2)
2. Cascada (1)
3. Jason Castro (2)
4. Mariah Carey (26)
5. Ciara (6)
6. Kelly Clarkson (15)
7. The Click Five (6)
8. Cheryl Cole (1)
9. Cobra Starship (3)
10. Coldplay (13)
11. Crazy Frog (5)
12. David Cook (4)
13. Sheryl Crow (3)
14. Miley Cyrus (1)

Charice
Charice Pempengco is a Filipino singer that came to fame with support from Oprah Winfrey. She also has appeared in an ongoing role on the TV show 'Glee.'

Matt Cardle
Matt Cardle is the 2010 winner of the UK talent show 'X Factor.' He was mentored by Dannii Minogue. His first single will be the Biffy Clyro song "Many Of Horror (When We Collide)."

Taio Cruz
Taio Cruz first made his name as a songwriter including sharing credits for Rihanna's smash "Umbrella." He topped the pop singles chart in both the US and UK as an artist with "Break Your Heart."