(FILES) In this file photo taken on February 10, 2019 US singer Dolly Parton performs onstage during the 61st Annual Grammy Awards in Los Angeles. - From "Jolene" to "Vaccine" -- country music legend Dolly Parton has received her first Covid shot, and urged Americans to follow her lead with a rewrite of her classic hit singing the vaccine's praises. "Vaccine, vaccine, vaccine, vaccine, I'm begging of you, please don't hesitate," she sang to the tune of her 1973 hit. "Vaccine, vaccine, vaccine, vaccine, because once you're dead, then that's a bit too late." (Photo by Robyn Beck / AFP)