Beyonce

R&B singer Beyonce Knowles shows no signs of slowing down as she enters her seventh week at No. 1 on the Billboard Hot 100 with "Irreplaceable" and a ninth atop the Hot R&B/Hip-Hop Songs chart. The hit is also No. 1 on the Pop 100.

Meanwhile, Justin Timberlake becomes the first artist since 50 Cent in 2005 to boast three songs in the Hot 100's top 20. "What Goes Around ... Comes Around" jumps up from number 21 to 12 to join Sexyback (16) and My Love (8).

Akon's "I Wanna Love You" and Fergie's "Fergalicious" remain No. 2 and No. 3 on the Hot 100, respectively, while Nelly Furtado's "Say It Right" inches up 5-4, switching places with Akon's "Smack That" featuring Eminem. Jim Jones' "We Fly High" jumps from No. 8 to a new peak position of No. 6.