Ne-Yo's "So Sick" holds onto the No. 1 spot on the Billboard Hot 100 for a second week and also remains No. 1 on the Pop 100 and Hot Digital Songs charts. Behind him on the Hot 100, Sean Paul's "Temperature" and James Blunt's "You're Beautiful" stick to No. 2 and No. 3, respectively.

The Blunt track also leads the Adult Contemporary chart for a second week. Mary J. Blige's "Be Without You" holds at No. 4 on the Hot 100 and remains atop the R&B/Hip-Hop chart for a 12th week. Daniel Powter's "Bad Day" is the Hot 100's greatest sales gainer, rising 14-5.

Elsewhere on that chart, T-Pain's "I'm N Luv (Wit A Stripper)" featuring Mike Jones stays put at No. 6, Natasha Bedingfield's "Unwritten" ascends 10-7 and Beyonce's "Check on It" featuring Slim Thug falls 5-8. Dem Franchize Boyz' "Lean Wit It, Rock Wit It" featuring Lil Peanut & Charlay holds at No. 9 and is the chart's greatest airplay gainer, while Chris Brown's "Yo (Excuse Me Miss)" drops 8-10 to round out the top tier.

The Hot 100's top debut belongs to Bird York's "In Too Deep" at No. 64. The track was nominated for best original song at the recent Academy Awards but lost out to Three 6 Mafia's "It's Hard Out There for a Pimp." Also new are KT Tunstall's "Black Horse & The Cherry Tree" (No. 91), Avant's "4 Minutes" (No. 94), Jack Ingram's "Wherever You Are" (No. 97), Bo Bice's "The Real Thing" (No. 98) and LeAnn Rimes' "Something's Gotta Give" (No. 100).

Nelly's "Grillz" featuring Paul Wall, Ali & Gipp notches a seventh week atop the Hot Ringtones chart, while Daddy Yankee's "Rompe" leads the Hot Latin Songs chart for a 15th frame. On the Hot Country Songs chart, Kenny Chesney's "Living In Fast Forward" maintains the No. 1 spot for a second week.

Nine Inch Nails' "Every Day Is Exactly The Same" spends a fourth week atop the Modern Rock chart, and Nickelback's "Animals" remains No. 1 on the Mainstream Rock tally for a seventh.

As previously reported, Pearl Jam's "World Wide Suicide" debuts at No. 3 on the Moden Rock tally, the highest bow there since Linkin Park's "Somewhere I Belong" debuted at No. 2 in March 2003.