" OMG " topped the charts in Australia , Ireland , New Zealand , the United Kingdom and the United States . The song became his ninth number-one hit in the United States , making him the first 2010s artist to collect number-one singles in three consecutive decades . He became only the fourth artist of all-time to achieve that feat . Usher also became the third artist to have at least one number-one song from five consecutive studio albums . The song 's choreography and dance-heavy accompanying music video has been compared by critics to that of " Yeah ! " . Usher performed the song live several times including on the ninth season of '' American Idol '' with will.i.am . He also performed the song as a part of a medley during his critically acclaimed performance at the 2010 MTV Video Music Awards . " OMG " , was named the fifth best selling song of 2010 in the US , selling 3.8 million units . The song sold 6.9 million copies worldwide during that year
2010 MTV Video Music Awards
2010 MTV Video Music Awards
OMG (Usher song)