
Meanwhile, Lady GaGa's "Bad Romance" gets bounced of the Top 10 to make way for Rihanna's "Russian Roulette." But expect the former to do the couture-clad hooker stroll back in on next week's chart now that the video has premiered. "Bad Romance" is currently at #4 on iTunes' Top Songs, but dropped from #9 to #18 on the Hot 100.
Elsewhere, 15-year-old pop munchkin Justin Bieber debuts at #26 with "Favorite Girl," which is two positions below one of his 65 other singles, "One Time."

Finally, it might not be curtains here for Leona Lewis, who just announced her first U.K. tour. "Happy," the first single off Echo, manages to rebound and bounce up from #98 to #68.
The U.S. Top 10:
1. "Fireflies" - Owl City *2 weeks*
2. "Empire State Of Mind" - Jay-Z feat. Alica Keys
3. "Whatcha Say" - Jason DeRulo
4. "Replay" - Iyaz
5. "Down" - Jay Sean feat. Lil Wayne
6. "Party In The U.S.A." - Miley Cyrus
7. "Paparazzi" - Lady GaGa
8. "3" - Britney Spears
9. "Russian Roulette" - Rihanna
10. "Sweet Dreams" - Beyonce