Spectrum is an award-winning Las Vegas vocal quartet specializing in Motown, classic soul and R&B, pairing polished four-part harmonies with choreography, sharp costuming and seasoned showroom style. Founded by singer and producer Cushney Roberts, the group spent more than six years portraying the Four Tops in American Superstars and Legends in Concert before expanding its repertoire to music associated with the Platters, the Temptations, Boyz II Men, Bruno Mars and other vocal favorites. Spectrum has headlined on the Las Vegas Strip, toured internationally, performed aboard major cruise lines and appeared with symphony orchestras across North America, earning two Best of Las Vegas honors, a Vegas Entertainment Consumer’s Living Legends Award and a star on the Las Vegas Walk of Fame.
