Enough is Enough -- is she Guilty?

Can anyone help me track down this factoid (if it's even true)? Way before podcasts existed, I remember hearing a radio host or music pundit call Barbra Streisand a career annihilator (though I think he had a catchier name for it). He claimed that she held a unique position in pop music: that every number-one charting artist who released a duet with her a) saw that duet reach number 1 on the charts, and b) never had another number 1 hit again. I have never been able to find this statement again anywhere. [more inside]
posted by Mchelly on Jun 20, 2012 - 5 answers