On Toni Braxton’s forth studio album Libra (released back in 2005), Keri Hilson sang background vocals on two songs on the album: the debut single from the album “Please”, which was produced by Scott Storch; and “Sposed To Be” which Toni Braxton’s sister also sang background on.In other news, Timbaland won for International “Artist of the Year” at the MTV Australia Awards on Monday, so congratulations to him!