Photos: Rock & Roll Hall of Fame Class of 2020 Rock & Roll Hall of Fame Class of 2020: Singer Whitney Houston performs at the 2011 Pre-GRAMMY Gala and Salute To Industry Icons Honoring David Geffen at Beverly Hilton on February 12, 2011 in Beverly Hills, California. (Kevork Djansezian/Getty Images) (Kevork Djansezian)