Erykah Badu took over the FADER's Instagram account earlier this evening, ahead of her gig hosting the annual BET Soul Train Awards. This year's show featured a Babyface tribute, a blistering performance from Jill Scott... and one hell of a diss from the host herself. During the opening monologue, Badu promised to keep true to the roots of Soul Train and stick strictly to R&B/soul, not allowing any rap to permeate the night. She then pretended to take phone calls from different rappers, including one Iggy Azalea, who Badu then said was welcome to come through because "what you're doing is definitely not rap." Ouch. Watch the burn below.