En Vogue's blend of classic R&B and of-the-moment sounds has made them a pop force for decades. Their fusions of funk and rock echo Teena Marie's genre-melding smashes; their sweetly rich harmonies place them in the girl-group pantheon alongside The Marvelettes and The Three Degrees. And their no-nonsense, female-forward attitude brings to mind soul-pop forces like Diana Ross and Janet Jackson.