Rihanna's "Disturbia" puts an end to the seven-week run at No. 1 by Katy Perry's "I Kissed a Girl" on the Billboard Hot 100, rising 3-1 after selling 148,000 downloads, according to Nielsen SoundScan. It's Rihanna's fourth chart-topper here, tying her with Beyonce and Mariah Carey for the most by a female artist this decade.
