After weeks of domination on several of Billboards singles charts, Snoop Dogg's "Drop It Like It's Hot" featuring Pharrell finally reaches the pinnacle of the Hot 100. During its four-week stint in the chart's runner-up spot, the track climbed to the top of Billboard's Hot R&B/Hip-Hop Singles & Tracks, Hot R&B/Hip-Hop Airplay and Hot Rap Tracks charts, where it remains on all of this week.

On the Hot 100, "Drop" trades places with Usher and Alicia Keys'' "My Boo," which falls to No. 2 after six weeks at No. 1. As previously reported, the two artists lead all finalists for the Billboard Music Awards, to be handed out Wednesday (Dec. 8) in Las Vegas.

Mario's "Let Me Love You" shoots 5-3 on the Hot 100 as the chart's fastest-growing track at radio. The R&B artist's sophomore set for J Records, "Turning Point," is due Tuesday (Dec. 7).

Nelly's "Over and Over" featuring Tim McGraw slides down a notch to No. 4 this week, but the song remains atop Billboard's Mainstream Top 40 list for a sixth week. Destiny's Child's "Lose My Breath" also slips one spot to No. 5, while Ciara's "1, 2 Step" featuring Missy Elliott climbs 9-6.

Ja Rule's "Wonderful" featuring R. Kelly and Ashanti drops 6-7 and Trick Daddy's "Let's Go" featuring Lil Jon and Twista falls 7-8. Kelly Clarkson's "Breakaway" falls one to No. 9, while Lil Jon & the East Side Boyz'' "Lovers and Friends" shoots 17-10 to round out the top tier of the chart.

The Game's "How We Do It" featuring 50 Cent is the Hot 100's greatest gainer at retail and makes a 53-40 jump. "True," the second single from Ryan Cabrera's Atlantic debut, "Take It All Away," is the chart's top debut at No. 52.

Also debuting this week is 50 Cent's "Disco Inferno" (No. 54), Gretchen Wilson's "When I Think About Cheatin''" (No. 60), Avril Lavigne's "Nobody's Home" (No. 61), Jesse McCartney's "Beautiful Soul" (No. 72), Lenny Kravitz's "Lady" (No. 73), SheDaisy's "Come Home Soon" (No. 75), Usher's "Caught Up" (No. 76), Patti LaBelle's "Gotta Go Solo" featuring Ron Isley (No. 89) and Sugarland's "Baby Girl" (No. 99).