Fergie's "London Bridge" retains its lead on both the Billboard Hot 100 and the Pop 100 charts for a third week, and also holds atop Hot Digital Songs for the same frame. Gnarls Barkley's "Crazy" and

Fergie's "London Bridge" retains its lead on both the Billboard Hot 100 and the Pop 100 charts for a third week, and also holds atop Hot Digital Songs for the same frame. Gnarls Barkley's "Crazy" and Nelly Furtado's "Promiscuous" featuring Timbaland warm the Hot 100's No. 2 and No. 3 spots, respectively, while Sean Paul's "(When You Gonna) Give It Up to Me" featuring Keyshia Cole rises 6-4.

Elsewhere on the Hot 100, the Pussycat Dolls' "Buttons" featuring Snoop Dogg holds at No. 5, Cassie's "Me & U" drops 4-6 and Ciara's "Get Up" featuring Chamillionaire rockets 21-7. The latter track is also the Hot 100's greatest sales gainer.

Christina Aguilera's "Ain't No Other Man" and Ne-Yo's "Sexy Love" stay put at No. 8 and No. 9 and Panic! At The Disco's "I Write Sins Not Tragedies" falls 7-10 to round out the top tier.

Chingy's "Pullin Me Back" featuring Tyrese is the Hot 100's greatest airplay gainer, while Danity Kane's "Showstopper" earns the chart's top debut, at No. 17.

Also new are Evanescence's "Call Me When You're Sober" (No. 25), Petey Pablo's "Show Me The Money" (No. 58), Red Hot Chili Peppers' "Tell Me Baby" (No. 69), the Game's "It's Okay (One Blood)" featuring Junior Reid (No. 88) and JoJo's "Too Little, Too Late" (No. 90).

On the R&B/Hip-Hop tally, Beyonce's "Deja Vu" featuring Jay-Z ascends three rungs to No. 1, ending the three-week run of Young Dro's "Shoulder Lean" featuring T.I., which falls to No. 3. Rodney Atkins' "If You're Going Through Hell (Before The Devil Even Knows)" fronts Hot Country Songs for a fourth frame and Mana's "Labios Compartidos" spends a fourth week atop Hot Latin Songs.

Keith Urban's new single "Once In a Lifetime" arrives on Hot Country Songs at No. 17 and shatters the Nielsen Broadcast Data systems-era record for the highest debut. "Lifetime" tops a No. 18 start by Garth Brooks' "Good Ride Cowboy" in October 2005, which surpassed his own previous record for the chart's highest bow, set in May 1991 when "The Thunder Rolls" bowed at No. 19. The new single introduces an as yet untitled new album, due Nov. 7 via Capitol.

Koji Kondo's "Super Mario Brothers Theme" extends its streak on the Hot Ringtones chart to 13 weeks at No. 1, while Daniel Powter's "Bad Day" continues to dominate Adult Contemporary, notching a 17th week atop the chart.

Three Days Grace's "Animal I Have Become" maintains its pole position on Mainstream Rock for a sixth week and AFI's "Miss Murder" leads Modern Rock for a fifth. Say Anything debuts at No. 38 on Modern Rock with its single "Alive With the Glory of Love," the first taste of any radio chart for the up-and-coming band.