Legendary singer Stevie Nicks of Fleetwood Mac fame announced Tuesday her entire 2021 concert tour has been canceled over concerns about catching COVID-19. “I’m devastated and I know the fans are disappointed,” the 73-year-old Phoenix native wrote in a tweet. “But we will look forward to a brighter 2022.” Nicks had planned five concerts at music festivals, but abruptly changed plans over fears about contracting the virus. “These are challenging times with challenging decisions that have to be made,” Nicks said in the tweet. “I want everyone to be safe and healthy and the rising COVID cases should be of concern to all of us.” Nicks is best known for her work with the band Fleetwood Mac of mid-1970s fame. With her distinctive, edgy voice and flamboyant stage presence, she later continued her career as a solo artist with 1981 chart-topping hits that included “Stop Draggin’ My Heart Around,” and …