Top 10 songs on iTunes Music Store for May 15:

1. “SOS,” Rihanna

2. “Bad Day,” Daniel Powter

3. “Over My Head (Cable Car),” The Fray

4. “Snap Yo Fingers,” Lil Jon featuring E-40 and Sean Paul

5. “Ridin’,” Charmillionaire and Krayzie Bone

6. “Dani California,” Red Hot Chili Peppers

7. “Where’d You Go,” Fort Minor featuring Holly Brook and Jonah Matranga

8. “Unfaithful,” Rihanna

9. “Temperature,” Sean Paul

10. “What’s Left of Me,” Nick Lachey