Usher's comeback is amazing! The r'n'b performer has managed to stay at the top position of the american single charts for a fourth week in a row. His single "OMG" is his biggest hit to date since "Yeah".
That means Katy Perry is once again at No 2 with her latest single with Snoop Dogg, Ke$ha is at No 4, while GaGa sings from No 6 to her beloved "Alejandro". Watch the video for "OMG" and check if the track is really that good!