OR someting similiar to Lady Marmalade and have 3-4 artists on it!!!
like Riahnna, Katy Perry, Nicki Minaj, & Lady Gaga. That would definitly debut at #1 and stay there for a LONG LONG time!!!
Monica and Brandy!
The did a duet in the late 90's and it hit #1 for 13 weeks i believe!! it was called The Boy Is Mine, and they both had other multiple #1 songs! how dont you know them!?