Gwen Stefani's "Hollaback" topped the Billboard Hot 100 and Pop 100 singles charts for the fourth straight week Thursday.

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Mariah Carey's "We Belong Together" picked up steam across several Billboard charts -- rising to No. 1 on the Hot 100 Airplay list and No. 2 on the Hot 100 and Hot R&B/Hip-Hop Songs charts.

Ciara's "Oh," which features Ludacris, fell to No. 3 on the Hot 100 and Hot R&B/Hip-Hop Songs charts and No. 2 on the Hot 100 Airplay list.

"Just A Lil' Bit" by 50 Cent rose to No. 4 on the Hot 100 while "Hate It Or Love It" by The Game Featuring 50 Cent fell to No. 5

The Black Eyed Peas' "Don't Phunk With My Heart," Rob Thomas' "Lonely No More," Kelly Clarkson's "Since U Been Gone," Bobby Valentino's "Slow Down" and Akon's "Lonely" rounded out the Top 10 of the Hot 100.

Valentino held on to No. 1 on the Hot R&B/Hip-Hop Songs chart.