Los Angeles -- Usher's "OMG" featuring will.i.am is No. 1 on the U.S. record chart for a fourth non-consecutive week, Billboard.com reported Thursday.
Coming in at No. 2 on the Billboard Hot 100 is Katy Perry's "California Gurls" featuring Snoop Dogg, followed by B.o.B's "Airplanes" featuring Hayley Williams at No. 3, Ke$ha's "Your Love is My Drug" at No. 4 and Taio Cruz's "Break Your Heart" at No. 5.
Rounding out the top tier are Lady Gaga's "Alejandro" at No. 6, B.o.B's "Nothin' On You" at No. 7, La Roux's "Bulletproof" at No. 8, Train's "Hey, Soul Sister" at No. 9 and Eminem's "Not Afraid" at No. 10.
Copyright 2010 United Press International, Inc. (UPI).