Oh, I also found this old interview from ThatGrapeJuice:
Sam: Your vocals, vocal arrangements, harmonies and runs have become somewhat ‘trademark Brandy’, with many of today's R&B artists, including Keyshia Cole, Rihanna and Chris Brown listing you as being one of their inspirations…
Brandy…that is so sweet…
Sam: (laughs). With that said which R&B artists of today inspire you – both vocally and more generally?
Brandy: I would have to say Beyonce; I really like her style a lot. I think she is one of the greatest singers of our time, one of the greatest performers of our time. I really like her a lot.
