According to information assembled by data partner BigChampagne, these are the top acts with the most followers on Twitter (as of April 20th):

1. Britney Spears (995,807)
2. John Mayer (760,522)
3. Diddy (612,586)
4. Coldplay (542,764)
5. Sara Bareilles (424,737)
6. A Fine Frenzy (394,429)
7. Soulja Boy (350,114)
8. Jimmy Eat World (281,989)
9. Heidi Montag (247,120)
10. Ashlee Simpson (222,548)

There arent really too many surprises, but I dont really class Heidi Montag as a musician!

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