Bell Biv DeVoe – Mann Center for the Performing Arts – Philadelphia, PA – June 1, 2017 – photo by Chris Sikich © 2017 Bell Biv Devoe, En Vogue & SWV – Mann Center for the Performing Arts – Philadelphia, PA – June 1, 2017 Poisonous beats infected The Mann last week as Bell Biv DeVoe brought their classic 1990’s hip-hop out as headliners on a stacked three band bill with En Vogue and SWV. Ricky Bell, Michael Bivins and Ronnie DeVoe still have the slick voices and harmonies to w