Usher maintained his perch atop the Billboard Hot 100 singles chart for a fourth non-consecutive week on Thursday with "OMG," featuring will.i.am.

Katy Perry's "California Gurls," featuring Snoop Dogg, stepped up a notch to the No. 2 spot, where it debuted two weeks ago.

B.o.B's "Airplanes," featuring Hayley Williams, dropped one to No. 3. B.o.B's former No. 1 "Nothin' on You" slipped two to No. 7.

Ke$ha reached the top five for the second time in her young career as "Your Love Is My Drug" rose from No. 7 to No. 4. First single "TiK ToK" spent nine weeks at No. 1 while "Blah Blah Blah" peaked at No. 7.

Taio Cruz took a step back on the list with a drop from No. 4 to No. 5 for "Break Your Heart," while Lady Gaga's "Alejandro" held at No. 6.

La Roux's "Bulletproof" lifted into the top 10, climbing from No. 14 to No. 8. Rounding out the top 10 were Train's "Hey, Soul Sister" which returned to the upper tier, rising two to No. 9, and Eminem's "Not Afraid," which slipped one to No. 10.

The "Glee" Cast once again dotted the Hot 100 with six titles on the list, but only one new entry, "Beth," at No. 72.

This season's "American Idol" winner and runner-up made a more tepid entry on the Hot 100 and Digital Songs charts than in past years as Lee DeWyze sent three solo songs into the Hot 100 and Crystal Bowersox one, with the pair teaming up for a fifth debut. A year ago Kris Allen and Adam Lambert combined for nine chart entries in the week that followed the season finale.

DeWyze took the chart's Hot Shot Debut at No. 24 with his coronation song, "Beautiful Day." Assuming a dip in rank next issue, the title will be the lowest-peaking "American Idol"-winning performance and only the third to fall short of the top 10, joining Jordin Sparks' "This Is My Now" (No. 15) in 2007 and Kris Allen's "No Boundaries" (No. 11) last year.

Other debuts from the "Idol" finalists were DeWyze's "Hallelujah" (No. 44) and "The Boxer" (No. 88), Bowersox's "Up to the Mountain" (No. 57) and the pair's "Falling Slowly" (No. 66).