Top 10 songs on iTunes Music Store for April 4:

1. “Bad Day,” Daniel Powter

2. “What You Know,” T.I.

3. “Unwritten,” Natasha Bedingfield

4. “Temperature,” Sean Paul

5. “Beep,” The Pussycat Dolls

6. “Move Along,” The All-American Rejects

7. “Ms. New Booty,” Bubba Sparxxx, featuring Ying Yang Twins

8. “Stupid Girls,” Pink

9. “You’re Beautiful,” James Blunt

10. “So Sick,” Ne-Yo