Usher has scored a fourth non-consecutive week at the top of the U.S. pop charts. The R&B superstar's "OMG" has kept Katy Perry, B.o.B and Ke$ha off the top of the Hot 100.
Perry's "California Gurls" moves up a spot to two, while B.o.B's Hayley Williams collaboration "Airplanes" slips to three and Ke$ha returns to the top five at four with "Your Love Is My Drug". "American Idol" winner Lee DeWyze lands the new chart's highest debut - his rendition of U2's "Beautiful Day" enters the countdown at 24.
On the albums chart meanwhile, "Glee: The Music, Volume 3 Showstoppers" takes the top spot, blocking Stone Temple Pilots' eponymous album to rule the chart. Justin Bieber's "My World 2.0" sits at No. 3, while Lady Antebellum's "Need You Now" and Usher's "Raymond vs. Raymond" secure No. 4 and 5 respectively.