Nelly's "Grillz" featuring Paul Wall and Ali & Gipp retains the No. 1 spot on the Billboard Hot 100 for a second week. The cut also ascends 12-5 on the Pop 100 and rises 3-2 on the Hot R&B/Hip

Nelly's "Grillz" featuring Paul Wall and Ali & Gipp retains the No. 1 spot on the Billboard Hot 100 for a second week. The cut also ascends 12-5 on the Pop 100 and rises 3-2 on the Hot R&B/Hip-Hop Songs chart.

Beyoncé's "Check on It" featuring Slim Thug is the Hot 100's greatest airplay gainer, jumping 3-2. The track also leaps 6-1 on the Hot Digital Songs chart and 3-1 on the Pop 100, where last week's chart-topper, Chris Brown's "Run It!" falls to No. 3. "Run It!" also drops 2-3 on the Hot 100.

Mariah Carey's "Don't Forget About Us" holds at No. 4 on the Hot 100, while the Pussycat Dolls' "Stickwitu" jumps 8-5. Juelz Santana's "There It Go! (The Whistle Song)" ascends 10-6, D4L's "Laffy Taffy" falls 6-7 and Nickelback's "Photograph" drops 5-8.

The All-America Rejects' "Dirty Little Secret" holds onto the No. 9 spot on the Hot 100 but drops 1-3 on the Hot Digital Songs chart. Mary J. Blige's "Be Without You" climbs 15-10 on the Hot 100 to round out the top tier. The cut also remains No. 1 on the R&B/Hip-Hop Songs chart.

Gavin DeGraw's "We Belong Together" is the Hot 100's top debut at No. 38. Also new are Jack Johnson's "Upside Down" (No. 69), Sara Evans' "Cheatin'" (No. 92), Kenny Chesney's "Living in Fast Forward" (No. 95), Bon Jovi's "Who Says You Can't Go Home" (No. 98), Juelz Santana's "Oh Yes (aka 'Postman')" (No. 99) and Blake Shelton's "Nobody But Me" (No. 100).

The Black Eyed Peas' "My Humps" remains No. 1 on the Hot Ringtones chart and Daddy Yankee's "Rompe" claims the top spot on the Hot Latin Songs chart for an eighth straight week. Carrie Underwood's "Jesus, Take the Wheel" holds at No. 1 on the Hot Country Songs chart, and Lifehouse's "You and Me" leads the Adult Contemporary airplay chart for a second week.

Weezer's "Perfect Situation" rises 4-1 on the Modern Rock chart, knocking System Of A Down's "Hypnotize" to No. 2. On the Mainstream Rock tally, Shinedown's "Save Me" remains No. 1 for a 10th straight week.