For the sixth week in a row, Beyoncé's "Baby Boy" featuring Sean Paul is the fastest-growing track at radio on Billboard's Hot 100. Yet its bid for No. 1 on the chart is once again thwarted by "S

For the sixth week in a row, Beyoncé's "Baby Boy" featuring Sean Paul is the fastest-growing track at radio on Billboard's Hot 100. Yet its bid for No. 1 on the chart is once again thwarted by "Shake Ya Tailfeather" from Nelly, P. Diddy and Murphy Lee, which holds the post for a fourth-straight week.

While "Baby Boy" is forced to hold at No. 2 on the Hot 100, the song overtakes "Frontin'" by Pharrell and Jay-Z on Billboard's Hot R&B/Hip-Hop Singles & Tracks chart, ending that cut's six-week run at the top. "Baby Boy" is just the fourth song achieve the Hot 100's "greatest gainer/airplay" designation for six-straight weeks. The last to have such an extended run was Ashanti's "Foolish" in early 2002.

Making a move on the Hot 100 this week is "Get Low" from Lil Jon & the East Side Boys featuring Ying Yang Twins. The song hops 6-4 to reach a new peak position. The Southern hip-hop act's leader also makes an appearance on "Damn!" from Younbloodz, which maintains its No. 11 post on the tally.

Further down, "Stand Up" from Ludacris and Shawnna bolts 38-21 in its third week on the Hot 100. The song, from Ludacris' forthcoming Def Jam album "Chicken & Beer," due Oct. 7, made its debut on the chart at No. 84.

Also making a big jump this week is rock act 3 Doors Down, whose "Here Without You" soars 40-25 in its fourth week on the tally. The song gives the rock act two cuts in the top-50; the band's "When I'm Gone" slips 45-47 this week.

Other cuts making notable gains on the Hot 100 are Ashanti's "Rain on Me" (49-34) and Maroon5's "Harder to Breathe" (57-40). The latter is Maroon5 first to reach the top half of the chart.

For the second week in a row, Jagged Edge scores the Hot 100's fastest-growing track at retail with "Walked Outta Heaven," up this week 58-48.

Elvis Presley, however, appears on the top-selling single in the U.S., according to Nielsen SoundScan. Paul Oakenfold's remix of Presley's "Rubberneckin'" debuts at No. 1 on Billboard's Hot 100 Singles Sales chart. It's the second time in the last two years that Presley has appeared on the best-selling single in the U.S. In 2001, JXL's remix of his "A Little Less Conversation" opened at No. 1. "Rubberneckin'" is No. 94 on the Hot 100.

"Bright Lights" from matchbox twenty is the top debut on the Hot 100, bowing at No. 73. Other notable entries include A Perfect Circle's "Weak and Powerless" (No. 78), Outkast's "The Way You Move" featuring Sleepy Brown (No. 83), Monica's "Knock Knock" (No. 89) and Saliva's "Rest in Pieces" at (No. 93).

Over on Billboard's Hot Country Singles & Tracks tally, Dierks Bentley's "What Was I Thinkin" becomes the first debut single by a new artist in about two years to top the chart. His 2-1 gain ends the seven-week reign of Alan Jackson and Jimmy Buffett's duet "It's Five O'Clock Somewhere."

Staind continues it lock on Billboard's rock airplay charts, with "So Far Away" leading the Modern Rock Tracks tally for a second-straight week and the Mainstream Rock Tracks chart for a seventh.