Even when they don’t love him back, Yungblud loves his hard-rock elders. At the VMAs a few weeks ago, the 28-year-old pop-rocker did his best Ozzy Osbourne impression during a medley tribute for his late friend and idol. Singing alongside Yungblud during that performance was Steven Tyler, whose history of sexual assault allegations eventually led Aerosmith to cancel their farewell tour. Yungblud …