These are all far too recent to be considered 'iconic'. I'm in need of some Mariah Carey ft. ODB or something. I don't think many at ATRL understand what the word iconic means.
The biggest was Umbrella or Love The Way You Lie, but I voted Run This Town hahaha
this poll is WRONG anyway, because it's not the same a Pop song with a rapper collaboration (Umbrella, ET,Deja vu, Baby Boy,California Gurls) that a Hip Hop song with a sung chorus by a girl ( All Of the Lights, Airplanes, Live Your Life, Run This Town, LTWYL, Dilemma, Empire State of Mind)