50 Cent's "Candy Shop" featuring Olivia becomes the top single in the United States this week, ending Mario's nine-week reign on Billboard's Hot 100 with "Let Me Love You." The frontrunner of three tr

50 Cent's "Candy Shop" featuring Olivia becomes the top single in the United States this week, ending Mario's nine-week reign on Billboard's Hot 100 with "Let Me Love You." The frontrunner of three tracks the rapper has in the top 10, "Candy Shop" is the 50 Cent's third Hot 100 No. 1 and the chart's greatest airplay gainer for the fourth week running.

50 is featured on the Game's "How We Do," which jumps 5-4, while his own "Disco Inferno" is No. 6 for a second week. He also climbs 58-43 as a featured artist on the Game's "Hate It Or Love It."

"Candy Shop" and "Disco Inferno" are both included on 50 Cent's upcoming Shady/Aftermath/Interscope release, "The Massacre," the release of which is being bumped up five days to March 3 due to bootleg copies appearing in such major markets as Chicago and Boston.

But 50 Cent can't rest easy on top of the Hot 100, as Green Day's "Boulevard of Broken Dreams" continues to push skyward, making a 3-2 move this week. The track remains at No. 1 on Billboard's Modern Rock Tracks chart for a 13th week, the Mainstream Rock Tracks list for a ninth, the Pop 100 for a third, the Adult Top 40 for a second, and rises 2-1 on the Pop 100 Airplay tally.

With the romance of Valentine's Day fading, Mario's "Let Me Love You" falls to No. 3 followed by Ciara's "1, 2 Step" featuring Missy Elliott, which slips one to No. 5.

Following a Grammy opening performance, Gwen Stefani's "Rich Girl" featuring Eve makes a 10-7 climb, while Kelly Clarkson's "Since U Been Gone" rises 9-8.

Usher, another Grammy performer, earns the fifth top 10 single from his LaFace/Zomba album "Confessions" as "Caught Up" jumps 11-9 and earns the Hot 100's greatest digital gainer designation.

Lil Jon & the East Side Boyz's "Lovers and Friends" rounds out the top tier with a 7-10 fall.

The Grammy Awards' multi-artist tsunami relief single, "Across the Universe," is the Hot 100's top debut this week at No. 22 and the highest-debuting song of 2005, besting last month's No. 40 bow of Killers' "Mr. Brightside."

It's also the first Hot 100 appearance for the Beatles song and the first John Lennon/Paul McCartney composition to appear on the chart in nine years. The duo last charted at No. 11 in 1996 with the Beatles' "Real Love." Proceeds from the cover -- which also bows at No. 4 on Billboard's Hot Digital Songs chart with 34,500 transactions -- will go towards UNICEF's efforts to aid disaster victims in Southern Asia.

Other Hot 100 debuts this week are Ludacris' "Number One Spot" (No. 82), Jack Johnson's "Sitting, Waiting, Wishing" (No. 87), Will Smith's "Switch" (No. 88), Bobby Valentino's "Slow Down" (No. 95), R. Kelly's "In the Kitchen" (No. 97), Brooke Valentine's Girlfight" featuring Lil Jon and Big Boi (No. 98), 112's' "U Already Know" (No. 99) and Simple Plan's "Shut Up" (No. 100).

On the Hot Country Singles & Tracks list, Rascal Flatts' "Bless the Broken Road" is No. 1 for a fourth week.