"OMG" is a song by Usher and will.i.am, who also wrote and produced the song.
am, who also wrote and produced the song. The song features will.i. OMG is a song by American recording artist Usher.
OMG is a song by American recording artist Usher. The song features will.i. am, who also wrote and produced the song.
OMG is a song by American recording artist Usher. The song features will.i.am, who also wrote and produced the song.