Eurovision Song Contest returned home Sunday to the adulation of fans, congratulations from the government and so much speculation that the lead singer had snorted cocaine during the show that he vowed to take a drug test.“We want to shut down the rumors,” Måneskin lead singer Damiano David told reporters at Rome’s Leonardo da Vinci airport as the band arrived home after their victory in Rotterdam, Netherlands.Rumors spread on social media after David was seen bending over a table during the