In reply to QD.

Dying at you thinking they have more impact than Brandy. Go do some research please.
All I'mma say is being the First Black Cinderella out ways all of Rihanna's accomplishments.
Now Hell fucking yes Beyonce is influential as fuck but as an entertainer.
Brandy is influential as a vocalist and as a true musician, honey lets talk about how her full moon album which is a staple in R&B music. What Brandy did which Bey is yet to do is create her own sound (Full Moon album) Aaliyah and Timb, Kelis and The Neptunes, Brandy and Rodney[Darkchild]. These are people who got in the studio and produced a sound that was different and is still copied in music today. That's Influence and that's why Brandy will always have more impact on music than Rihanna and Beyonce.