After a three-week break, Lil Wayne's "Lollipop" featuring Static Major returns to No. 1 on the Billboard Hot 100 this week. It's the longest chart-topping hiatus since Usher's "U Got It Bad" went fou

After a three-week break, Lil Wayne's "Lollipop" featuring Static Major returns to No. 1 on the Billboard Hot 100 this week. It's the longest chart-topping hiatus since Usher's "U Got It Bad" went four weeks between No. 1 stints in January 2002.

Leona Lewis' "Bleeding Love" is No. 2 for a second week, while last week's chart-topper, Rihanna's "Take a Bow," slips 3-1 despite being the fastest-growing track at radio. Usher's "Love in This Club" featuring Young Jeezy rises 5-4, trading places with Jordin Sparks' "No Air" featuring Chris Brown.

Ray J & Yung Berg's "Sexy Can I" holds at No. 6, and Madonna's "4 Minutes" featuring Justin Timberlake remains No. 7. Natasha Bedingfield's "Pocketful of Sunshine" rises 9-8, trading places with Mariah Carey's "Touch My Body." Danity Kane's "Damaged" holds at No. 10 to round out the top tier.

Another new Usher song, "Love in This Club, Part II," soars 63-18 in its fourth week, thanks to digital sales of 44,000.

The Hot 100's greatest digital gainer is Duffy's "Mercy," which sold 59,000 downloads en route to a 66-27 climb. The U.K. artist's debut Mercury album, "Rockferry," debuted yesterday at No. 4 on the Billboard 200.

The week's top debut comes from the reunited New Kids On The Block with "Summertime" at No. 57. The song shifted 39,000 downloads and is off to a strong start at top 40 radio, moving 40-35 this week on the Pop 100 Airplay tally.

Also new this week are Kate Voegele's "Hallelujah" at No. 66, Three 6 Mafia's "Lolli Lolli (Pop That Body)" at No. 79 and Jason Mraz's "Lucky" featuring Colbie Caillat at No. 82.

Lil Wayne's "Lollipop" is No. 1 for a fourth week on Hot R&B/Hip-Hop Songs, where Kanye West's "Homecoming" featuring Chris Martin is the top new entry at No. 68.

Brad Paisley's "I'm Still a Guy" moves 2-1 to overtake Hot Country Songs, his fourth chart-topper from the album "5th Gear."

On Billboard's rock chart, Weezer is No. 1 on Modern Rock with "Pork & Beans" for a third week, and Disturbed's "Inside the Fire" tops Mainstream Rock for a third. The Cure has the top debut on Modern Rock with "The Only One" at No. 35.