Rihanna leads pop chart for fourth week

New York: Rihanna`s `Rude Boy` led Billboard`s Hot 100 singles chart for a fourth week on Thursday, with the top eight titles unchanged from the previous week.

"Nothin` On Me" from B.o.B featuring Bruno Mars held at No. 2, and Train`s "Hey, Soul Sister" at No. 3. Lady Antebellum`s "Need You Now," "Telephone" by Lady Gaga featuring Beyonce, and "Break Your Heart" by Taio Cruz featuring Ludacris occupied the No. 4 to No. 6 slots, respectively. The Black Eyed Peas` "Imma Be" followed at No. 7, Justin Bieber`s "Baby" was at No. 8, and Jason Derulo rebounded two to No. 9 with "In My Head." "BedRock, from Young Money featuring Lloyd, slipped one to No. 10. Usher, the man with the No. 1 album in the United State, posted the third-best Hot 100 debut of his career as "OMG," featuring will.i.am, opened at No. 14. His two prior best debuts were with his first two charting singles, "Nice & Slow" (No. 9) and "My Way" (No. 13) in 1998. Bureau Report