Rihanna

Rihanna officially ties with Mariah and Beyonce for the most #1s by a female artist this decade, following the singer's climbed into the number one spot with "Disturbia." Rihanna's "Disturbia" put an end to Katy Perry's "I Kissed a Girl" on Billboard's Hot 100, rising 3-1 this week after selling 148, 000 downloads, according to Nielsen Soundscan. "Disturbia" also becomes Rihanna's fourth Hot 100 chart topper following just behind "Take A Bow." Not far behind on the Hot 100, Chris Brown's "Forever" moves up to no.2 on the chart followed by Katy Perry and Rihanna's "Take A Bow" at no.4. On the Hot R&B/Hip Hop songs tally, Lil Wayne has officially dethroned Keyshia Cole's "Heaven Sent" which spent over 4 consecutive weeks on the chart with "A Milli." In related news, Lloyd's "Lessons In Love" debuted at no.7 on the Billboard 200 albums chart, selling around 51,000 copies.